The two halves shall be sealed by diamond shaped cross section rubber gasket permanently locked by a groove in the valve body.
阀体的两个部分应该采用钻石形交叉橡胶垫圈通过阀体的卡箍永久性锁定密封起来。
2
In most cases the cross section of the bearing rings of a stainless steel deep groove ball bearing is very thin and the side faces correspondingly slim.
在多数情况下，不锈钢深沟球轴承的轴承圈横截面很薄，因此侧面也就很薄。
3
The fast multipole method is applied for calculating the radar cross section of a groove in a perfectly conducting plane.