它将轴或支架的轴向移动控制在一个方向。
They limit the axial displacement of shaft or housing ir one direction.
我们国家倾向于采用血管成形术或支架带来的好处。
We in this country have been enamored of the benefits of angioplasty and stents.
壳体上有标准的螺孔与阀门或支架相连。中间输出轴为一个标准的内八角。
There is standard bolt hole connecting with the valve or bracket. The output axis in the middle is a standard internal octagon.
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