A helium line unexpectedly vented, eventually leading ground support crews to a ring that had come loose from a seal.
一根氦管路意外泄露，最后地面支持人员发现问题源自一个松动的密封环。
The tapered plug is precision ground from hardened high alloy material or an overlaid stainless to assure a tight seal and easy operation.
锥形阀塞经过精密研磨，采用硬化高合金材料或一种镀层不锈钢，确保紧密密封和操作容易。
Seat rings are long to compensate for temperature fluctuations and are seal - welded. seating faces are hardfaced with stellite 6, ground and lapped to mirror finish.
阀座环较长，并且是密封焊接的，能够补偿温度波动。阀座面用钨铬钴合金6硬化，研磨和层叠为镜面光洁度。
Thiss stand-off in St Andrews Bay - which is teeming with wildlife - sees an elephant seal facing a king penguin as they mark their ground.
安德鲁斯湾上的两军对峙——在这个野生动物众多的栖息之地，一只海象和一只帝企鹅正在对峙，双方都想标志自己的地盘。 。
When the tail water level is higher than the ground of a hydro-power plant, the repairing and safety of the plant will be affected without water seal in the tail gate.
当水电站尾水位高于厂房地平面时，如果尾水闸门不能止水，势必影响电站的检修和安全。
United can seal their 19th title on Saturday at the ground where they felt last season's was lost – Blackburn's Ewood Park.
曼联可能在周末锁定第19冠，去年在埃伍德公园曼联败阵而归。
The ground floor drain should not be set, otherwise should avoid indoor air pollution measures, such as setting high seal floor drain.
地面不宜设地漏，否则应有防室内空气污染措施——如设置高水封地漏。
The ground floor drain should not be set, otherwise should avoid indoor air pollution measures, such as setting high seal floor drain.
地面不宜设地漏，否则应有防室内空气污染措施——如设置高水封地漏。
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