... 14.7 弹性加载可变压头流量计spring-loaded variable-head meter 14.8 环形间隙annular space 14.9浮子float；sinker ...
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... annular shroud 环形围筒 annular space 环形空间；环形通道，环形室 annular spent fuel decay storage 乏燃料衰变贮存环形室(舱) ...
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solid concentration in annular space 环空岩屑浓度
Annular space protection 阻火保护材
annular space log 环空测井
annular green space 环状绿型
annular space logging 过环空测井
Annular space permeability 环空砂层渗透率
So annular space is formed between instrument and oil tube. The measured liquid (water or polymer solution) flows through this annular space.
井下存储式电磁流量计在测井时利用扶正器在油管中居中,电磁流量计和油管之间形成环形空间,导电的流体水或者聚合物溶液由此环形空间流过。
参考来源 - 电磁流量计在聚合物溶液中的响应特性·2,447,543篇论文数据，部分数据来源于NoteExpress
Some mechanical recovery Wells in Chengdao Oilfiled produce oil in tubing -casing annular space.
胜利埕岛油田部分机械采油井存在油套环空出油现象。
Adding air pressure within the annular space between the housing and sleeve can throttle, or close the valve.
在阀体外壳和套管之间的环形空间内施加气压，即可实现阀门的节流和关闭功能。
When there is a foam column is the annular space of a pumping oil well there will be no distinct gas-oil interface.
当抽油井的环形空间中出现泡沫段时，将会失去明显的油-气界面。
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