annulus flow line 环空出油管
annulus access line 环空连通管
annulus s line 环空管
line-annulus 线环
annulus s flow line 环空出油管
annulus s access line 环空连通管
The injection mandrel is equipped with a port - and check-valve system to direct fluid pumped down the annulus or injection line into the production conduit.
配注器装有孔口阀和单向阀系统，使泵入的流体沿环空向下或沿注入管线向下进入生产导管。
The center line of the flow care is partial to the inner side of annulus.
流核中心线偏离环空中心线，且偏向环空内侧。
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