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- The intsallment of mechanical seal is concretely discussed and the effect of medium on mechanical seal and the cause of seal invalidation are mainly analyzed. 具体论述了机械密封的安装,并且主要分析了介质对密封的影响和密封失效的原因。
- Analysis of the cause of seal invalidation of auto-claver door 一例蒸压釜釜门密封失效事故原因分析
- Paste Resin Monomer Pump Mechanical Seal Invalidation Analysis and Improvement 进口糊树脂单体泵机械密封失效分析及改造
- 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。
- His claim to ownership is invalid. 他的所有权是无效的。
- This document carries the royal seal. 这份文件上盖有王室印章。
- A passport that is out of date is invalid. 护照过期是无效的。
- 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。
- His father is a bed-ridden invalid. 他父亲是个缠绵病榻的人。
- The deal needs the government's seal of approval. 这一交易需经政府批准。
- He has been an invalid all his life. 他终身残废。
- Seal (up) the window to prevent draughts. 把窗户封起来以防风。
- The invalid gained colour under the doctor's care. 病人在医生的治疗下，脸色逐浙红润。
- 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 invalid lay propped on the pillows. 那病弱者倚靠在枕头上。
- 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。
