smooth closure
顺利关闭
以上为机器翻译结果，长、整句建议使用 人工翻译 。
In the more complex Bottom of the ocean, Even do not need to cut the tubing, Depending on the shape can also be attached annexed, Smooth closure.
在较复杂的海底甚至无需割断油管，也可随物附形，顺利封堵。
youdao
1 hour later, the smooth realization of Lei water bridge closure.
1个小时后，耒水大桥顺利实现了合龙。
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