钢轨剖面    rail section?

冲压式喷气发动机    ram jet?

撞凰    ram?

撞凰    rammer?

随机酌    random action?

随机漂移    random drift?

随机载荷    random load?

随机过程    random process?

随机脉冲    random pulse?

随机风暴波    random storm wave?

随机变量    random variable?

随机振动    random vibration?

随机游动    random walk?

射程分布    range distribution?

交变应力范围    range of alternating stresses?

爆炸范围    range of explosion?

线性范围    range of linearity?

测量范围    range of measurement?

脉冲重复频率范围    range of pulse repetition frequency?

投射距离    range of the projection?

射程减缩    range reduction?

射程谱    range spectrum?

射程速度关系    range velocity relation?

范围    range?

兰金固体    rankine body?

兰金 雨贡纽关系    rankine hugoniot relation?

兰金理论    rankine‘s theory?

兰金涡流    rankine‘s vortex?

快速分析    rapid analysis?

快速冷却    rapid cooling?

急流    rapid flow?

快速加热    rapid heating?

快的    rapid?

速度    rapidity?

急流    rapids?

稀有气体构形    rare gas configuration?

稀有气体    rare gas?

稀疏激波    rarefactional shock?

稀疏波    rarefactional wave?

稀薄空气    rarefied air?

稀薄气体动力学    rarefied gas dynamics?

速率控制    rate action control?