生词(1)——Units生词(2)螺纹紧固件与传动螺杆fastener紧固件Screw螺钉Blindhole盲孔Throughhole通孔Threadedhole螺纹孔Tappedhole螺纹孔Bolt螺栓Stud双头螺栓Threadedrod螺杆Threadhead螺纹头Washer垫圈Flathead平头Hexagonal六角的Fillister圆头Thermalexpansion热膨胀Dilation膨胀Axial轴向的Helix螺旋Surfacetreatment表面处理Surfacecondition表面条件Clampingsurface夹紧面Plasticflow塑性滑移Lockwasher防松垫圈Slottednut开槽螺母Locknut防松螺母Springtension弹簧张力Wedge楔入Splitwasher开口挡圈Toothedlockwasher齿式锁紧垫圈Slottednut开槽螺母Castlenut蝶形螺母Cotterpin开口销Matingpart配件Externalthread外螺纹Internalthread内螺纹Righthanded右旋Lefthanded左旋Multiplethreaded多头螺纹Pitch螺距Lead导程Leadangle导程角,螺旋升角Majordiameter大径Pitchdiameter节径,中径Minordiameter小径Powerscrew传动螺杆Linearactuator线性致动器Ball-bearingscrew滚珠丝杠Slidingfriction滑动摩擦Staticfriction静摩擦铆钉Rivet铆钉Hammer锤Forge鍛弹簧Torsionbarspring扭杆弹簧Helicalcompressionspring螺旋压簧Helicalextensionspring拉力弹簧Elongate