?电阻硬焊    resistance brazing

?电阻对焊    resistance butt welding

?阻力系数    resistance coefficient

?[自由]液面[效应]阻力    resistance due to free surface phenomena

?闪弧对接电阻焊    resistance flash butt welding

?电热器    resistance heater

?电阻高温计    resistance pyrometer

?电阻调整器    resistance regulator

?电阻开关    resistance switch

?阻力试验    resistance test

?电阻温度计    resistance thermometer

?电阻焊接    resistance welding

?电阻丝应变计    resistance wire strain gauge

?有阻横摇    resisted rolling

?电阻器    resistor

分解,分辨率    resolution

?决议案    resolutions

?共振    resonance

?共振吸收    resonance absorption

?共振曲线    resonance curve

?反应振幅运算子    response amplitude operator (RAO)

?缚扎垫环    restrained packing ring

?制止垫环    restrained packing ring

?限制吃水船    restricted draft vessel

?限制水域    restricted water

?拘限水域效应    restricted water effect

?合量,合力    resultant

?减速器    retarder

?阻碍药剂    retarding agent

?美国无线电视听播制造商协会    RETMA (or EIA) (= Radio Electronic Television Manufacturers Association, U.S.A.)

?救回    retrieval

?反光材料    retro-reflective materials

?逆转机    return action engine

?循环空气量    return air quantity

?回弯管    return bend

?回弯管    return bent pipe

?回引连杆[动力]机    return connecting rod engine

?回焰锅炉,回管锅炉    return flame (or return tube) boiler

?回行机构,回行齿轮    return gear

?回[流]管    return pipe

?回行冲程    return stroke

?回流式燃烧器    return type burner