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- For removal of valve stem seal and lower valve spring guide. 可用于拆卸汽门油封或降低汽门弹簧。
- Backseat ? machined bonnet stem bushing provides back-up stem seal. 后座-经过精密加工的阀盖阀杆衬套实现后座阀杆密封。
- Maintenance-free O-ring stem seal with additional stem scrapper. 转柄具O形密合环，不需维护。并另有转柄清洁器。
- Two O-Rings in gland follower provide additional stem seal protection to assure tightness of less than 1 ppm. 密封压盖随动件内的两个O形环为阀杆提供更加安全的密封保护，以确保泄漏率不会超过百万分之一。
- If necessary, the stem and stem seal may be removed from the bonnet by removing the retainer ring and handle and screwing the stem out the under-side of the bonnet. 如果必要的话，阀杆和阀杆密封可能要从阀帽上拆卸下来，要在阀帽的下方先拆卸挡圈和手柄，以及阀座上的螺丝。
- Replaceable hose filter and valve stem seals for field reliability. 可更换软管过滤器和阀门阀杆密封,使得现场应用可靠行更高。
- Safer and tighter stem seal. 更安全、更紧密地阀杆密封。
- It has two stem sealing:one is stuffing box and another is toroidal sealing ring (O-ring). 本阀阀杆密封分为两种形式：一为填料密封；一为O型密封环密封。
- Since these back-up stem seals rotate against the TFE bushings, valve shell leakage, indicating wear on the outside of these seals, is virtually unreported. 由于这些阀杆密封支撑靠着TFE衬套旋转，所以显示这些密封外部磨损导致的阀门外壳泄漏实际上就没有再发生。
- Cook the meat quickly at first to seal in the juices. 一开始要大火烧肉，以便保存肉汁。
- TEST RESULTS LEAD TO DESIGN OF LONG-LIFE LEAKPROOF STEM SEAL 试验结果导致长寿命的防泄漏阀杆密封结构设计
- The putty gives a good seal round the window. 窗户四周泥的油灰密封效果很好。
- Our foil packets seal the flavour in. 我们用锡纸包装以保持原味。
- This document carries the royal seal. 这份文件上盖有王室印章。
- The seal on the bottle has perished. 瓶子的封记已经腐烂。
- He impressed his seal on the wax. 他在火漆上盖了他的私章。
- The deal needs the government's seal of approval. 这一交易需经政府批准。
- Seal (up) the window to prevent draughts. 把窗户封起来以防风。
- A round seal affixed to a papal bull. 印玺一个圆形的教皇的正式宣布训令或法令的封印
- The arrangement of leaves on a stem. 叶序茎上叶子的排列次序
