The retaining plate can prevent dust from entering into the controller.
挡板防止灰尘进入控制器内。
In the design illustrated, the core pin is anchored by a local core-retaining plate.
图示的设计中，型芯杆是用一个局部的型芯挡板固定的。
The steel retaining plate has two functions, retaining the bushing and preventing rod rotation.
固定板的钢具有两种功能，保留套管和防止杆旋转。
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