... variable-slope pulse modulation 变斜率脉冲调制 variable-speed electric submersible pump 变速电潜泵 variable-speed engine 变速发动机 ...
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The design of test installation device, layout of test line, selection and installation of test sensor, development of submersible electric pump speed equipment is included.
流体输送测试系统的设计、试验管路的布局、综合测试系统测试传感器的选用、安装和潜水电泵转速设备的开发。
The choke ACTS as controlling the production and lowering the back pressure in the electric submersible pump. Because of the high speed of liquid the life of the choke is short.
油嘴在电泵井的生产中起控制产量和降低回压的作用，但是在日常生产中，油嘴孔很容易被高速液体刺大，因而使用寿命短。
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