赛车用凸轮轴?    race camshaft

赛车?    racer (racing car)

径向间隙?    radial clearance

星型发动机?    radial engine

径流式转化器?    RADIAL FLOW TYPE CONVERTER

散热器?    radiator

散热器芯?    radiator core

散热器护罩?    radiator cowl

散热器加水口盖?    radiator filter cap

散热器保温帘?    radiator roller blind

散热器百叶窗?    radiator shutter

压力式水箱盖?    radiator-pressure cap

冲压式空气滤清器?    ram air clearner

脉冲进气?    ram charging

冲压式进气歧管?    ram intake manifold

接近角    ramp angle

纵向通过角?    ramp angle

催化剂耗损    rare earth catalyst

稀土催化剂?    rare earth catalyst

初始速度?    rate of onset

额定供油量?    rated fuel delivery

额定马力?    rated horse power

喷孔长径比?    ratio of nozzle hole length nozzle diameter

反应室?    reactive cell (chamber)

催化燃烧分析仪    reactive cell (chamber)

过热保护装置    reactive manifold

反应式歧管?    reactive manifold

准备就绪指示器?    readiness indicator

擦碰撞    rear collision (rear impact)

后碰撞?    rear collision (rear impact)

前驱动汽车    rear drive automobile

后驱动汽车?    rear drive automobile

后翻倾式自卸汽车?    rear dump truck

两侧翻倾式自卸汽车    rear dump truck

后悬?    rear overhang

离地间隙    rear overhang

半挂车间隙半径?    rear tractor clearance radius of semi-trailer

半挂车前回转半径    rear tractor clearance radius of semi-trailer

后置式发动机?    rear-engine

接受器?    receiver

复查试验?    re-check test

往复式燃油喷射泵?    reciprocating fuel injection pump