您要查找的是不是：
- That oyster closed up its valves. 那个牡蛎把壳合拢起来。
- stellited valves 钨铬钴合金阀
- Having a shell consisting of two hinged valves. 双瓣壳的有由两个开合的瓣组成贝壳的
- Cars began using caps that incorporated two valves. 汽车开始使用装有两个阀门的油箱盖。
- Fill kill and choke valves with seawater. 将压井阀和阻流阀注满海水。
- A rod moved by a cam to operate the valves in an internal-combustion engine. 阀门挺杆通过凸轮转动的杆，用来操纵内燃机的阀门
- Streams are switched by solenoid valves. 流路靠电磁阀进行切换。
- The valves of the heart allow the blood to pass in one direction only. 心脏的瓣膜使血液只能朝一个方向流动。
- Seat face Stellited, ground and lapped to a mirror finish. 钨铬钴合金面阀座,经过研磨抛光达到镜面抛光度。
- All needle valves must be closed on test kit. 检测组件上的所有针形阀必须关闭。
- No downstream shutoff valves are allowed. 不允许有下游关闭阀。
- Yes,but it's quite a job to treat these valves. 是的，但是处理这些阀门相当费事。
- Opening by valves,as the capsule of a lily or iris. 瓣裂的由荚分开的，例如百合花或蝴蝶花的荚膜
- The subscipt i refers to instantaneous valves. 脚注i指瞬时值。
- Velan Small Forged Steel Check Valves. 锻造低温闸阀、截止阀和止回阀。
- FLIGHT CONTROLS HYDRAULIC SHUTOFF VALVES. 飞行操纵液压关断活门。
- FORGED STEEL PISTON CHECK VALVES. 锻钢活塞止回阀用于水平和垂直管道。
- Globe Stop Check Valves Major Features. 球形截止止回阀主要特点。
- Globe Stop Check Valves Product Line. 球形截止止回阀产品系列。
- Do Check Valves Operate Properly? 止回阀是否工作正常?
