Salt pump is one of the key units in tube extracting equipment.
盐泵是管道化溶出装置的关键设备之一。
The Rotor profile is the key for Roots pump.
罗茨泵转子型线是罗茨泵的关键。
The port valve is a key part in a piston pump.
配流阀是柱塞泵中十分重要的元件。
The rod pumping pump is the most important key parts of the rod pumping system.
有杆抽油泵是有杆抽油装置的最关键部分。
The rod pumping pump is the most important key parts of the rod pumping system.
有杆抽油泵是有杆抽油装置的最关键部分。
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