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1、精选学习资料 - - - - - - - - - Yuan. Fourth se every 10 Yuan action equipme nt management eval ssessment task force people, sign an uation system of equipme n unclear task force on ant management eval ssessment of pe opuation system the 49t l e 10. Valves, i nstrument h article Dg person wit20 valve is mi
2、ssi h no signs esi ach ng a wheel bel ow 10 Yuan a evaluation task force 10. Maia ssessment task force n steam, water, people. smoke, wi. Lack of pressure pi ping a nd pre nd, gas pipeli ne, pressure vesselssure v essel every 10 Yua , not accordi ng to the stan asse ssment task force pe ndar d paint
3、i ng, numberiople. Pipe header la ng, labeling the device a ck of thermometers, pressure vessels a name and media trends, . Of the nd ot her equipme defect log book shall nt, eac be kept h evaluati properly, impron task for ce-ma n 10. E oper l ost each of the eval qui pment lubricati on la ck an oi
4、l Cup assessme al uation responsibility for 100 Yua n. Equipment task force 10. Equi pment la nt defects, operators make recorck of lifting rings, 10 of every asse ds i n a timely manner assment task for nd notify maintenar ce. Each lacke d a groundi nce personnel, general maintenang of ele actrical
5、 e qui pment line i nce personnel do not nspecti on task force people 10. Connecti process t he run not to register each of the rti ng coupli ng 10 yuan per one guard che cking task for ce pe opl e. Power box for ea uns a nd overha ul the squa d leader checki ng 50, eliminate less time or refuses to
6、 ch missing one ha ndle 10 Yuan assessme nt task force people. Lighting che ck and repair a monitor 50 defects. Rotati ng equipment me box door cover is missi cha nical, t hermal, ele ctrical, ng 10 Yuan assessme nt task force oil leakage oil ea ch evaluation task forpeople. Di ce 10. stribution box
7、 (Cabi Leakage of pump packinet) lack of dire ng, retainict light bul bs each evaluati ng ring di splacement, damage, on task for ce 10. Damaged alumi drainage holes clogge d bearinum sig ns every 10 Yuan assessment task force people. Free sig ngs int o the water every 10 Yuan a ssessment task force
8、 people. Ons il mirror, oil level gauge not see oil level every 10 Yuan assessment task force people. Equipment damage due to personal l negligence, compensati on for the value of equipment 50%. Cracking because of bad freezing measures each valve, water pump (a) compensati on for the value of equip
9、ment 30%. Due to operator error or does not enforce strict fuel system and equipment repairman maintenance, improper commissi oni ng equipme e nt parts and damage, compensation for the value of 50%. Damage to equi pment should be pr omptly reported to the production technology section, undeclared as
10、sessment workshop Director 100 Yuan/times. After overhaul, the equipment shoul d be no grease, no corrosion, fouling and powder accumulation and debris -free, not up to the standard assessment charge 20 Yua n ea ch. T he construction site shoul ul d have sufficient lighting and necess ary security m
11、easures, prohi biting the jumbled mess of equipment and materials, repair and maintenance work after the finished work should be done before every heads of eval al uation the net area is clean contrary to 50 Yuan. Due to mai ai ntena nce e needs a temporary mount, cut off the stair raili i ngs, open
12、 cha nnel cover, should be promptly removed after completion and restoration of offender assessment charge第一章机械运动一、长度和时间的测量1、测量某个物理量时用来进行比较的标准量叫做单位。为方便交流，国际计量组织制定了一套国际统一的单位，叫国际单位制（简称SI）。(m) ，其他单位有：千米(km)、分米2、长度的单位：在国际单位制中，长度的基本单位是米(dm)、厘米 (cm)、毫米 (mm)、微米 ( m)、纳米 (nm)。1km=1 000m ；1dm=0.1m；1cm=0.01m；1
13、mm=0.001m ；1 m=0.000 001m；1nm=0.000 000 001m 。测量长度的常用工具：刻度尺。刻度尺的使用方法：注意刻度标尺的零刻度线、最小分度值和量程；测量时刻度尺 的刻度线要紧贴被测物体，位置要放正，不得歪斜，零刻度线应对准所测物体的一端；读数时视线要垂直于尺面，并且对正观测点，不能仰视或者俯视。3、国际单位制中，时间的基本单位是秒(s)。时间的单位还有小时(h)、分 (min) 。1h=60min 1min=60s 。4、测量值和真实值之间的差异叫做误差，我们不能消灭误差，但应尽量减小误差。误差的 产生与测量仪器、测量方法、测量的人有关。减少误差方法：多次测量求
14、平均值、选 用精密测量工具、改进测量方法。误差与错误区别：误差不是错误，错误不该发生能 够避免，误差永远存在不能避免。二、运动的描述1、运动是宇宙中最普遍的现象，物理学里把物体位置变化叫做机械运动。2、在研究物体的运动时，选作标准的物体叫做参照物。参照物的选择：任何物体都可做参 照物，应根据需要选择合适的参照物（不能选被研究的物体作参照物）。研究地面上物 体的运动情况时，通常选地面为参照物。选择不同的参照物来观察同一个物体结论可能 不同。同一个物体是运动还是静止取决于所选的参照物，这就是运动和静止的相对性。三、运动的快慢1、物体运动的快慢用速度表示。在相同时间内，物体经过的路程越长，它的速度就
15、越快；物体经过相同的路程，所花的时间越短，速度越快。在匀速直线运动中，速度等于运动 物体在单位时间内通过的路程。在物理学中，为了比较物体运动的快慢，采用“ 相同时 间比较路程” 的方法，也就是将物体运动的路程除以所用时间。这样，在比较不同运动 物体的快慢时，可以保证时间相同。计算公式： v=s t 其中： s 路程 米(m)；t 时间 秒(s)；v 速度 米/秒(m/s) 国际单位制中，速度的单位是米每秒，符号为m/s 或 m s-1，交通运输中常用千米每小时做速度的单位，符号为 km/h 或 km h-1，1m/s=3.6km/h。v=s t，变形可得： s=vt，t=s v。2、快慢不变，
16、沿着直线的运动叫匀速直线运动。匀速直线运动是最简单的机械运动。运动速度变化的运动叫变速运动，变速运动的快慢用平均速度来表示，粗略研究时，也可用速度的公式来计算，平均速度 =总路程 /总时间。四、测量平均速度1、停表的使用：第一次按下时，表针开始转动(启动 )；第二次按下时，表名师归纳总结 针停止转动 (停止 )；第三次按下时，表针弹回零点(回表 )。读数：表中小圆圈的数字单位Director, d 第 1 页，共 10 页为 min，大圆圈的数字单位为s。2、测量原理：平均速度计算公式v=st20 Yuan. Related workshop in the 7th month producti
17、 on technology section for maintenance scheduling, delayed assessment w orkshop Director of 50 Yuan a day. Units s of the 25th of the month shoul l d be material spare parts, machining parts, ne e w plans bi otech Division, day of delay deducted 10 Yuan. Related workshop at the 27th of the mont t h
18、each month equipment rate tables, maintenance plan, along with t t he repair records, record che ck report, automati ati c device inputs, relay (thermal), protection of investment and the operation of equipment, each day of delay evaluation work rk shop Director 20 Yuan. tfLarge and minor maintena t
19、 l.nce proje cts, tlthe main parts of equipment replacee nt (incl l uding the tusual repla cement) must be incl ude d in file, re re pair does not fill withi ti n a week after delaye d one day asse rtssme nt task force 10. (Pr toducti on technology section after each big, minor re t .e pairs to equi
20、pment file check) mont ihly preve ntative health checks a nd technology organization, w orkshop ffregular healt h checks a nd te chnol ogy professior on t he flight, from the empl oyer to pay the materials, accessories, e qui pment, shop no, led by tonals tcost sually do not make their ow n arrangem
21、e nts, also included i n the assessme nt (notificati on forof materials (welders responsi ble for the el ectrode), and evaluati on of 50 Yuan. 5, materials and equipme he work shop Dire ctor and approve d the scheme aw arded i n full. Workshop 2, requisitioning e issued). F qui pment a ils to partic
22、i pate in the examination, nt for private use and fraud, found a a nd a ccessorie s to strict quality contrsse ssment of 50 Yuccountable, paid for by t ol, and quality problems in, late examinatio he responsi n usi ng the 20. ble materials, eiote ch company, qui pment, a 30t nd Dire h totals monthly
23、 mai e ctor of the task forte nance pce on assea n completi on, e qui pmentssment of 50% performa, e qnce -related i pment inspe d pay. 6, apprction, test, a nd reoval to use higport to the Deph quality steel prrtment oducts iof bus nstead of or i ness admini stration. Fr dinary steel, offender asse
24、 ifth secti on re ceiving e qui pme ssment 50 at a time, instead nt a nd materials of 20, 45th for use r ule 50th ex pendabl e materials: 1, wr ordinary steel steam-pressure part aithout pla nni ng or comnd shaft each time ete nt V ice Presiche ck of 100 Yuan (constitdent sig natuuted see, financial
25、 process, led parately). 7, the material does by the payme nt pr ocessing fee. 2, mnot write specifications, models i nt ena nce . Material fee. 3,or wrong specificati witho on, t a regular testi do not write, at the material time, ea ng in biotech, identified i ea ch examinatin accor on 20. 8, pla
26、a nce with the scheme, ala n no materials and Dirend no mainte nance ctor of the task forrojects ce (or Direct or maintenance ar ct or) 20 signat not material ures ealoss ch assessmepaid by the nt. 9, attend mont material the material t hly analysicost, Dire s of materials (Directctor of the task fo
27、rce on assessme nt of 100 Yua n. 4,or, material part) late check 20 Yuan, lack of assessme re pair w ork after the unusent 50 Yuan. 51st equipme d material in me nt and o submis spare ion in a time parts: 1, ly manner shoul needed by the industry ad be nd trade properly preserved, found in the fiel
28、compa ny to repurchase workshop - - - - - - -精选学习资料 - - - - - - - - - Yuan. Fourth se every 10 Yuan action equipme nt management eval ssessment task force people, sign an uation system of equipme n unclear task force on ant management eval ssessment of pe opuation system the 49t l e 10. Valves, i ns
29、trument h article Dg person wit20 valve is missi h no signs esi ach ng a wheel bel ow 10 Yuan a evaluation task force 10. Maia ssessment task force n steam, water, people. smoke, wi. Lack of pressure pi ping a nd pre nd, gas pipeli ne, pressure vesselssure vessel every 10 Yua , not accordi ng to the
30、 stan asse ssment task force pe ndar d painti ng, numberiople. Pipe header la ng, labeling the device a ck of thermometers, pressure vessels a name and media trends, . Of the nd ot her equipme defect log book shall nt, each evaluati be kept properly, impron task for ce-ma oper l ost eacn 10. E qui p
31、ment lubricati on la ck an oil Cup assessme h of the eval uation responsibility for 100 Yua n. Equipment task force 10. Equi pment la nt defects, operators make recorck of lifting rings, 10 of ds i n a timely manner a every asse ssment task for a nd notify maintenar ce. Each lacke d a groundi nce pe
32、rsonnel, general maintenang of ele actrical e qui pment line i nce personnel do not nspecti on task force people 10. Connecti process t he run not to register each of the rti ng coupli ng 10 yuan per one guard che cking task for ce pe opl e. Power box for ea uns a nd overha ul the squa d leader chec
33、ki ng 50, eliminate less time or refuses to ch missing one ha ndle 10 Yuan assessme nt task force people. Lighting che ck and repair a monitor 50 defects. Rotati ng equipment me box door cover is missi cha nical, t hermal, ele ctrical, ng 10 Yuan assessme nt task force oil leakage oil ea ch evaluati
34、on task forpeople. Di ce 10. stribution box (Cabi Leakage of pump packinet) lack of dire ng, retainict light bul bs each evaluati ng ring di splacement, damage, on task for ce 10. Damaged alumi drainage holes clogge d bearinum sig ns every 10 Yuan assessment task force people. Free sig ngs int o the
35、 water every 10 Yuan a ssessment task force people. Ons il mirror, oil level gauge not see oil level every 10 Yuan assessment task force people. Equipment damage due to personal l negligence, compensati on for the value of equipmnt 50%. Cracking because of bad freezing measures each valve, water pum
36、p (a) compensati on for the value of equipment 30%. Due to operator error or does not enforce strict fuel system and equipment repairman maintenance, improper commissi oni ng equipme e nt parts and damage, compensation for the value of 50%. Damage to equi pment should be pr omptly reported to the pr
37、oduction technology section, undeclared assessment workshop Director 100 Yuan/times. After overhaul, the equipment shoul d be no grease, no corrosion, fouling and powder accumulation and debris -free, not up to the standard assessment charge 20 Yua n ea ch. T he construction site shoul d have suffic
38、ient lighting and necessary security measures, prohi biting the jum bled mess of equipment and materials, repair and maintenance work after the finished work should be done before every hea ea ds of eval al uation the net area is clean contrary to 50 Yuan. Due to mai ai ntena nce e needs a temporary
39、 mount, cut off the stair raili i ngs, open cha nnel cover, should be promptly removed after completion and restoration of offender assessment charge第二章声现象一、声音的产生与传播1、一切发声的物体都在振动。用手按住发音的音叉，发音也停止，该现象说明振动停止发声也停止。振动的物体叫声源。人说话，唱歌靠声带的振动发声，婉转的鸟鸣靠鸣膜的振动发声，清脆的蟋蟀叫声靠翅膀摩擦的振动发声，其振动频率一定在 20-20000 次/秒之间。2、声音的传播需要介
40、质，真空不能传声。在空气中，声音以看不见的声波来传播，声波到达人耳，引起鼓膜振动，人就听到声音。气体、液体、固体都能发声，空气能传播声音。3、声音在介质中的传播速度简称声速。一般情况下，v 固v 液v 气 声音在 15空气中的传播速度是 340m/s 合 1224km/h ，在真空中的传播速度为 0m/s。4、回声是由于声音在传播过程中遇到障碍物被反射回来而形成的。如果回声到达人耳比原声晚 0.1s 以上人耳能把回声跟原声区分开来，此时障碍物到听者的距离至少为 17m。利用：利用回声可以测定海底深度、冰山距离、敌方潜水艇的远近测量中要先知道声音在海水中的传播速度，测量方法是： 测出发出声音到受
41、到反射回来的声音讯号的时间 t，查出声音在介质中的传播速度 v，则发声点距物体 S=vt/2。二、声音的特性1、乐音是物体做规则振动时发出的声音。2、音调：人感觉到的声音的高低。用硬纸片在梳子齿上快划和慢划时可以发现：划的快音调高，用同样大的力拨动粗细不同的橡皮筋时可以发现：橡皮筋振动快发声音调高。综合两个实验现象你得到的共同结论是：音调跟发声体振动频率有关系，频率越高音调越高；频率越低音调越低。物体在1s 振动的次数叫频率，物体振动越快频率越高。频率单位次 /秒又记作 Hz 。3、响度：人耳感受到的声音的大小。响度跟发生体的振幅和距发声距离的远近有关。物体在振动时，偏离原来位置的最大距离叫振
42、幅。振幅越大响度越大。增大响度的主要方法是：减小声音的发散。（1）声音是由物体的振动产生的；（2）声音的大小跟发声体的振幅有关。4、音色：由物体本身决定。人们根据音色能够辨别乐器或区分人。5、区分乐音三要素：闻声知人 依据不同人的音色来判定；高声大叫 指响度；高音歌唱家 指音调。三、声的利用 可以利用声来传播信息和传递能量。四、噪声的危害和控制1、当代社会的四大污染：噪声污染、水污染、大气污染、固体废弃物污染。2、物理学角度看，噪声是指发声体做无规则的杂乱无章的振动发出的声音；环境保护的角 度噪声是指妨碍人们正常休息、学习和工作的声音，以及对人们要听的声音起干扰作用 的声音。3、人们用分贝 （
43、dB）来划分声音等级； 听觉下限 0dB；为保护听力应控制噪声不超过 90dB；为保证工作学习，应控制噪声不超过 70dB；为保证休息和睡眠应控制噪声不超过 50dB。4、减弱噪声的方法：在声源处减弱、在传播过程中减弱、在人耳处减弱。第三章 物态变化 一、温度 1、定义：温度表示物体的冷热程度。2、单位：国际单位制中采用热力学温度。名师归纳总结 20 Yuan. Related workshop in the 7th month prregular health checks and technol ogy professiodu onals cti on technology section
44、 for maintenance scheduliusually do not make their ow n arrangeme ng, delaye me nts, also included id asse n the asssment w orkshop sessme nt (notifi Director cati onof 50 Yua form issued). Fan a day. Units ils to s of the 25th partici pate in theof the mont examination, ash shoul sed be material sp
45、are parts, machi ssment of 50 Yuan, late examination ning parts, ne n 20. Be w plaiote ch compns bi otech Divisi any, 30t h toton, day of delay d tals monthly mainteeducted 10 nance pla Yuan. Related wa n completi on, e orkshop at the 27th qui pment, e qui pmof the mont ent inspet h each mont ction, test, ant h equipment rate tablend report to the Department s, mainte of busnance pla n,i ness admini st al ong with tstration. F ifth sehe repair re cti on re cecor iving eds, record quipmech