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- disc sealed triode 盘封三极管
- disc seal triode 盘封三极管
- This prevents stem from scoring and galling and provides longer disc seal and body life. 这种结构避免阀杆刮伤和磨损，延长阀瓣密封和阀体的使用寿命。
- The coupling adjustor can adjust the disc seal after the disc is abraded.Its life is three times than others. 闸板磨损后设在阀体外的耦合调节器可以调节闸板的密封状态，其使用寿命是其它闸阀类的3倍以上。
- The disc sealing ring is easy to replace and maintain. 阀板密封圈易于更换，便于维修。
- "T" structure of disc sealing ring.The sealing pair is linear sealing. 阀板密封圈采用"T"形结构，密封副呈线性密封。
- Valves should be installed with the disc in the closed or almost closed position. This will prevent damage to the disc sealing edge. 安装阀门时,阀瓣应该处于关闭或几乎关闭的位置。这样可以防止阀瓣密封边缘的损坏。
- Police sealed off all the exits from the building. 警方把建筑物的所有出口都封锁住了。
- 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。
- The computer disk is sent in a sealed container. 计算机软盘装在密封的盒里寄出。
- Our foil packets seal the flavour in. 我们用锡纸包装以保持原味。
- Have you recorded the data in disc? 你已把那些数据存储到磁盘上了吗？
- This document carries the royal seal. 这份文件上盖有王室印章。
- You can't copy your file with this disc; it's full. 你不能用这张磁盘拷文件，这张盘满了。
- The seal on the bottle has perished. 瓶子的封记已经腐烂。
- The edge of the disc had been machined flat/smooth. 圆盘的边缘已用机器磨平[光]。
- Debris on check disc sealing surface 止回阀阀瓣密封表面上的碎片
- The tube was sealed off by fusing the material together. 管子以熔合管端的方法封闭起来了。
- He wears an identity disc round his neck. 他脖子上挂著身分牌儿。
