The piston type unit should be accessible or be provided with an access panel.
活塞型的水锤消除器应该可以接近或设检查口。
Rotary-piston type wet shotcreting machine; Coupling plate; Wear resistance; Measure;
转子活塞式湿喷机；结合板；耐磨性；措施；
This is the common piston in cylinder type.
这普通活塞在方面汽缸类型。
Research of Heterogeneous Type Piston Pin Boss Hole Closed Loop Processing System.
异型活塞销孔闭环加工系统研究；
Research of Heterogeneous Type Piston Pin Boss Hole Closed Loop Processing System.
异型活塞销孔闭环加工系统研究；
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