Arm is the main working parts of ladle turret.
臂是钢包回转台的主要工作部件。
Single-screw pump is a new volume of the inner rotary gear pump. The main working parts are eccentric screw (rotor) and fixed bushing (stator).
单螺杆泵是一种新型的内啮合回转式容积泵。主要工作部件是偏心螺杆（转子）和固定的衬套（定子）。
In this paper, the general structure, technical parameter, principle and design of main working parts of 1GL-80 horticulture-typed implement are introduced .
介绍了1GL-80型自驱型园艺作业机的总体结构、主要技术参数、主要工作部件的工作原理及结构设计；
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