文档介绍：:..ables塑料的plastic套casing绝缘体insulator短路shortcircuit浇铸mould可导性conductivity锻压extrude耐腐蚀corrosionresistance缺乏的scarce杆,ponent横截面积cross-sectionalarea直角rightanglesN/m2forceperunitarea数字的numerical压squash剪切强度shearstrength偏心offsetloads横向剪切transversecutting铆钉rivet剪切载荷shearingload处于剪切状态inshear耐冲击toughness(impactresistance)撞击shatter脆性的brittle橡胶rubber和。。。混淆beconfusedwith虎钳vice冲击载荷impactloading高碳钢high-carbonsteel(mildlow)退火anneal中等的moderate锤子hammer红热redhot样品specimen淬火quench裂纹crack外层outerlayer银器钢silversteel弹性elasticity使变形deform拥有possess弹性极限elasticlimit塑性变形plasticdeformation/permanentdeformation最后ultimately断裂fracture弹性范围elasticrange和。。。成正比beproportionalto形变量theamountofdeformation超过exceed虎克定律Hooke’ing轧制rolling铆接rivetheading硬度hardness划擦scratch磨损abrasion压痕indentation表征indication耐磨wearresistance变硬的hardened脆性brittleness突然折断snap脆性材料brittlematerial刚度rigidity(stiffness)uracy物理性能physicalproperties力学性能mechanicalproperties化学稳定性chemicalstability耐腐蚀resistancetocorrosion密度density单位体积质量masspervolume衍生的derived相对密度relativedensity公式formula(复数formulae)urrentPVCpolymerisedvinylchloride绝缘外壳insulatingsheathing绝缘体insulator通风设备ventilation典型导体/绝缘体typicalconductor/insulatingmaterial电阻resistivity欧姆ohm-metres电阻温度系数temperaturecoefficient锰镍铜合金manganinalloy镍铬合金nichromealloy绕线电阻wirewoundresistors半导体semiconductor温度传感器temperaturesensors电子计温计electronicthermometers绝缘材料insulatingmate