But the mechanical connection methods are also needed in some conditions.

聚乙烯压力管道的连接以熔接为主,但有些场合需要机械密封连接.

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Mechanical connection will be adopted for column rebar according to construction drawings.

5柱纵向钢筋按图纸要求焊接连接.

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Use for mechanical connection of different bus duct, dust - proof , splash - proof and continuity of protective grounding.

用于母线槽之间的机械连接 、 防尘 、 防溅水及接地保护的连续性,连接片内衬密封阻燃胶条.

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The soft mechanical connection is adopted in order to reduce running noise and elevator door faults.

机械连接采用软传动方式,达到降低开关门故障和噪声的效果.

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It is not a direct and mechanical connection as are the arms and legs the body.

这不是直接机械的联系如同身体的手脚.

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