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- Secondary seal material shall be FPM or EPDM and correspond to the seat material for maximum chemical resistance. 二级密封材料应该是FPM或三元乙丙橡胶和具有最好耐化学腐蚀性能的相应阀座材料。
- They are designed to provide a secondary seal in the event the cylinder valve develops leakage through the valve seat. 它们是设计用来在钢瓶阀门通过阀座产生泄露的情况下提供一个二次密封。
- Secondary seal material shall be FPM or EPDM and correspond to the/" target="_blank">the seat material for maximum chemical resistance. 二级密封材料应该是FPM或三元乙丙橡胶和具有最好耐化学腐蚀性能的相应阀座材料。
- By means of reaserched the friction pair surace failure and the material used in secondary seal ring,the leakage reason of mechanical seal and their solution measure are ffound. 通过对机械密封摩擦副表面失效及副密封圈用材的研究,寻找机械密封泄漏原因和解决办法。
- The secondary seal of the casing head spool adopts the BT-shape surface,which can get an ideal effect by selecting plastic seal gerase through the injecting mouth. 套管头四通的副密封采用BT型密封结构,这种结构通过注塑口注入塑料密封脂达到理想的密封效果。
- Application of secondary seal for floater 外浮顶储罐二次密封技术应用
- Friction force of secondary seal 副密封摩擦力
- 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。
- 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。
- Her age is of secondary interest. 她的年龄不太重要。
- 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
- She forgot to seal her letter before mailing it. 她忘记在寄信前将信封上。
- The experience set the seal on their friendship. 这一经历确定了他们的友谊。
- In secondary school, children get more advanced knowledge. 在中学,孩子获得更深一些的知识。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries