您要查找的是不是：
- precision check valve 精密止回阀
- Check valve guiding shall be plastic to plastic. 止回阀引导装置应该是塑料对塑料。
- Remove check valve and valve seal from booster. 从倍力器上卸去逆止阀和阀门密封。
- Connect vacuum hose to booster check valve. 连接真空软管到增压器检测阀。
- To test for tightness of second check Valve. 检测第二止回阀的密封性。
- ANSI FLANGED SWING CHECK VALVE CLAS. 美标法兰止回阀。
- Reassemble the Check valve modules. 重新组装止回阀模块。
- Connect vacuum hose to booster check valve . 连接真空软管到增压器检测阀。
- Purpose: To test check valve No. 1 for tightness. 目的:检测止回阀1号的密封性。
- Sticky outlet check valve poppet. 1检查过滤的进水管线。
- CAUTION: The check valve spring is in compression. 警告：止回阀弹簧处于压缩状态。
- The accessorial products are washbasin, kitchen drainage, drainage tub, precision forged parts, check valve, pipe fittings and so on. 该辅助产品洗脸盆，厨房排水，浴缸排水，精密伪造的部分，单向阀，管件等。
- All known methods of the precision check for resistance measurement of mine ventilation networks by barometry are summarized and analyzed in this paper. 分析了已有的矿井风网阻力测量精度的检验方法。
- Remove the four screws holding the first check valve cover. 拆卸固定第一止回阀阀盖的四个螺丝。
- A check valve may be required ahead of the backflow preventer. 此时在防回流阀前面可能需要安装一个止回阀。
- Service the second check valve using steps 2 through 12. 按照第2步至第12步维修第二止回阀。
- Use a check valve to prevent reverse flow into the cylinder. 采用止回阀,防止回流入钢瓶。
- There are several situations where the registration of DLG and DOM is wanted: DLG precision check, a combination of DLG and DOM for field mapping, congruence of DLG and DOM to obtain multiplex relief map. 在很多情况下,需要用DOM和DLG的叠加配准:检查DLG精度,DOM套合DLG进行外业调绘,DLG与DOM叠加生成复合地形图。
- Check valve seats are replaceable without the use of special tools. 止回阀阀座可更换，不需要采用特殊工具。
- Velan Small Forged Steel Check Valves. 锻造低温闸阀、截止阀和止回阀。
