Screw type drain valve, convenient opening.
旋紧式泄水阀，开启方便。
The structure of a new type of reciprocating kneading screw is brought forward.
研制出一种新型往复式混炼螺杆的结构形式。
The pumps must be of the low shear Archimedes screw type.
泵必须是低剪切力的阿基米德螺旋式泵。
There are two types of restraint-screw rod type and frame plate type.
约束的形式有采用螺杆和门形钢板两种。
The GF Type Marine single-screw pump is horizontal structure, driven by Marine motor.
型船用单螺杆泵为卧式结构，由船用电机驱动。
The GF Type Marine single-screw pump is horizontal structure, driven by Marine motor.
型船用单螺杆泵为卧式结构，由船用电机驱动。
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