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- Kits contain leak-proof vials.Caps provide a positive seal that traps volatile material and ensures complete digestion. 测试工具包括防漏小瓶，瓶帽密封良好，既可防止挥发性物质挥发同时也保证分解彻底。
- Seating - Buna N disc to metal seating assures positive seal for shutting off the gas to burner in the event of high water temperature conditions. 阀座-丁腈橡胶阀瓣对金属阀座，确保在出现过高水情况下关闭通向燃烧头的燃气时的密封性。
- Positive seal reliability is assured by simple preselect parameters customized to your sealing needs. 产品简介 Alidatable Continuous Rotary Band Heat Sealer contains a superior Control system.
- Registered machine fits and positive sealing O-ring seals at all joints; easy replacement. 在所有连接点均配置拥有专利保护的机械式适合的、积极的O型密封垫圈,更换简便易行。
- There is positive proof that he did it. 有确切的证据证明他做了此事。
- 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。
- In the NIBCO design stop-checks, you will note that the disc is mounted to permit the disc to settle into the seat area for positive sealing in case there is any misalignment due to assembly or uneven heat expansion. 从美国尼伯科的截止止回阀结构设计中，人们可能会注意到，万一出现由于组装问题或不稳定的热膨胀导致的中心线错位，所安装的阀瓣能够适应阀座区域的要求主动调整密封。
- 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
- Her behaviour was a positive outrage. 她的行为残暴到了极点。
- I'm positive she told us to meet at noon. 我肯定她是告诉我们在中午见面。
- 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。
- He affixed his seal to the document. 他在文件上盖了印。
