solution density detector 溶液密度检定器
gas density detector 气体密度侦检器
gas-density detector 气体密度侦测器
electronic density detector 电子密度检测仪
smoke density detector 排烟浓度探测器
methane density detector 瓦斯浓度检测仪
gas density balance detector 气体密度天平检测器
The source and detector, however, are arranged to be sensitive to the density of material in the annulus and can distinguish between fluid and cement behind the casing.
与密度测井不同的是，其伽马射线源和探测器的布置方式能使它们对井内环形空隙中物质的密度很敏感，可以将套管外面的流体和水泥区分开来。
This paper gives a brief introduction to the structure of suspension-water interface detector, work principle and application condition of measuring density flow in the reservoir.
本文简要介绍了清浑水界面探测器的结构、工作原理及其在水库异重流测量中的应用情况。
The dual-detector density logging response relation has been widely used, but some factors have been neglected.
现在使用的双源距密度测井响应关系较理想化，很多影响因素都忽略了。
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