successive lifting and lowering system
...： 连续升降系统；连续式液压提升器；速度差；负载转换行程 [gap=882]Keywords : successive lifting and lowering system;continuous hydraulic lifting device;speed difference;transferred load displacem..
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successive lifting and lowering system
连续升降系统
以上为机器翻译结果，长、整句建议使用 人工翻译 。