回收率比较法    rate-of-return comparison

差温式火灾探测器    rate-of-rise detector

转速记录    rate-of-turn record

速度灵敏的    rate-sensitive

产量敏感油藏    rate-sensitive pool

产量-时间关系    rate-time relationship

鼠洞吊卡    rat-hole elevator

井底口袋内的砾石砂浆    rathole gravel slurry

鼠洞管    rat-hole scabbard

负载能力调整因数    rating adjustment factor

发动机额定功率    rating of engine

井产量；评定井产量    rating of well

比率分析法    ratio analysis

振幅和相位差计    ratio and phase meter

比率臂    ratio arm

比值组合    ratio combination

比值合成图象    ratio composite image

比值曲值    ratio curve

比例鉴频器    ratio detector

比值增强图象    ratio enhanced image

比值误差    ratio error

比值估计    ratio estimation

按比例控制流量    ratio flow control

组分比调节；调节组分比的    ratio governing

比值图象    ratio image

比值信息    ratio information

岩石厚度比率图    ratio map

比值掩膜    ratio mask

比值法    ratio method

出资比例    ratio of contributions

累计空气-水比    ratio of cumulative air to water injected

流动负债比率    ratio of current liabilities

分割比    ratio of division

气顶体积-油带体积比    ratio of gas-cap volume to oil zone volume

重力-毛细管力比    ratio of gravity to capillary force

总重皮重比    ratio of gross to tare weight

注入空气-采出原油比    ratio of injected air to produced oil

净收益对净值的比率    ratio of net income to net worty

净收益对资产决额的比率    ratio of net income to total assets

生产井数-注入井数比    ratio of producers to injectors

储采比    ratio of reserves to production

转数比    ratio of revolution