The two principal methods of motor_speed control for feed_water pump are mechanical and electrical.
给水泵实现转速调节的基本方法有机械和电气两种。
Pump and motor jacket can substantially improve the electrical heat resistance.
泵和电机带夹套，可大幅度提高电机的耐热性。
The method of electrical heating screw pump production is developed.
为此，提出了电热杆螺杆泵采油方法。
Emulsification diversion point has also been verified with the electrical submersible pump running data.
用电潜泵井生产数据间接地验证油水乳化体系的转相点。
Emulsification diversion point has also been verified with the electrical submersible pump running data.
用电潜泵井生产数据间接地验证油水乳化体系的转相点。
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