滑动系数
ratio of slip
热容比 ratio of specific heat
冲程-缸径比 ratio of stroke to diameter
变换比 ratio of transformation
粘度比 ratio of viscosities
壁厚与管径比 ratio of wall thickness to size
比值坐标纸 ratio paper
比率调整塞阀 ratio plug valve
比值处理 ratio processing
比率分离机 ratio separator
比例转换开关 ratio switch
比值测量技术 ratiometric technique
热容比 ratio of specific heat
冲程-缸径比 ratio of stroke to diameter
变换比 ratio of transformation
粘度比 ratio of viscosities
壁厚与管径比 ratio of wall thickness to size
比值坐标纸 ratio paper
比率调整塞阀 ratio plug valve
比值处理 ratio processing
比率分离机 ratio separator
比例转换开关 ratio switch
比值测量技术 ratiometric technique
有理数；理性的 rational
有理分析；示构分析 rational analysis
有理逼近 rational approximation
纯理性准则 rational criterion
理性决策 rational decision making
合理开发 rational development
合理开采 rational exploitation
有理式 rational expression
有理数 rational number
有理多项式 rational polynominal
有理多项式滤波器 rational polynominal filter
有理根 rational root
基本原理 rationale
合理性 rationality
有理化 rationalization
产业合理化 rationalization of industry
定量配给 rationing
石油产品定量分配 rationing of petroleum products
比率记录分光光度计 ratio-recording spectophotometer
比值型岩相图 ratio-type lithofacies map
三雷达台接收系统 ratran
无线电电传打字机 RATT
脉纹；连接线束 rattail
鸣石 rattlestone
铁白云石碳酸岩 rauhaugite
角砾化白云岩 rauhwacke
劳梭NFDA3属 Rauserella
栏板 rave
散开部分；使混乱 ravel
破碎地层 ravelly ground
