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drivskivehissar ska vara konstruerade så att en säker meddrivning erhålles.
lifts driven by friction pulleys must be designed so as to ensure stability of the traction cables on the pulley.
最后更新: 2017-04-06
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drivskivehissar skall vara konstruerade så att en säker meddrivning erhålles.
lifts driven by friction pulleys must be designed so as to ensure stability of the traction cables on the pulley.
最后更新: 2014-11-21
使用频率: 2
质量: