One-Piece-Ball 单层球
three-piece-ball 三层球
tow-piece-ball 双层球
one-piece ball valve 进口一片式球阀
Two-piece-ball 双层球
touch-piece ball sleeve switch 触片滚珠滑套开关
One piece model ball valve 进口一片式球阀
ball piece piece 圆头块
NIBCO provides static grounding standard on most carbon, stainless steel and bronze three-piece ball valves. See product pages for availability.
在美国尼必可大多数碳钢球阀、不锈钢球阀和青铜三件式球阀上,静电接地都是标准配置。请参阅使用的产品样本。
The headstock piece ball valve is a spherical hole, around the axis perpendicular to the channel rotation, so as to achieve the purpose of crossing gate.
球阀的启闭件是一个有孔的球体,绕垂直于通道的轴线旋转,从而达到启闭通道的目的。
As we settled in at our table, near the disco ball, I asked him for the best piece of advice he could give an ordinary investor.
当我们在迪斯科舞池边的桌子旁坐好之后,我问他对一个普通的投资者的最好的建议是什么。
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