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1·Note: Valves are static grounded by thrust washer.

注意：这些阀门采用止推垫圈实现静电接地。

2·NOTE: Valves are static grounded by thrust washer and packing.

注意：这些阀门通过止推垫圈和填料实现静电接地。

3·For thrust bearings, and shaft tight and together with the movement of said shaft washer, and bearing or mechanical shell holes into the transition and play supporting role with the said seat.

对于推力轴承，与轴紧配合并一起运动的称轴圈，与轴承座或机械壳体孔成过渡配合并起支承作用的称座圈。