您要查找的是不是：
- Have you turned off the water valve? 你关掉水阀了吗？
- We need an eye bolt to fit this valve. 我们需要一个有眼螺栓来固定这个阀门。
- He soon detected the faulty valve. 他很快查到了出毛病的阀门。
- concentric valve 同心阀
- The centres of concentric circles coincide. 同心圆的圆心是一个。
- The pump sucks air out (of the vessel) through this valve. 这台泵通过这个阀门把(容器中的)空气抽出。
- The figure bounded by and containing the area between two concentric circles. 圆环域以两个同心圆为界的图形或两圆之间包括的图形
- It consists of a pair of concentric cylinder. 它由一对同轴的圆筒组成。
- The exhaust valve on my car have burn out three times. 我车子上的排气阀已烧坏三次。
- The exhaust valve on my car has burnt out three times. 我车子上的排气阀已烧坏三次。
- The centers of concentric circles coincide. 同心圆的圆心重合。
- Concentric circles were made in the water. 同心圆的波纹在水面上散开。
- Concentric spheres are parallel. 同心球面是平行的。
- Composed of a single valve or piece. Used of a shell. 单瓣的由单个瓣膜或部分组成的。用于壳
- To form concentric rings or spirals. 绕成盘状形成同心环或螺旋线
- To wind in concentric rings or spirals. 盘绕绕成同心环或螺旋线
- Concentric circles are parallel. 同心圆是平行的。
- Monitors with Tannoy Dual Concentric drivers. 双显示器的天朗同轴驱动程序。
- This valve regulates the flow of water. 这个阀门控制着水的流量.
- A small valve or faucet used to drain or reduce pressure, as from a boiler. 泄气阀，小龙头用来排空或降低压力的一种小阀门或小龙头，如锅炉上的
