The lifting device is a rope and pulley system.
这种起重装置是由缆索和滑轮组成的。
Tight-line device is a lifting tool.
紧线器是起重工具的一种。
Safety protection device for preventing overload of lifting cargo ladder.
设有防止升降货梯超载的安全保护装置。
Device for working surface, especially lifting platform, and method for operating such device.
用于表面处理的装置，特别是升降工作的吊盘，和使这种装置工作的方法。
Tight-line device is a lifting gear.
紧线器是一种起重工具。
Magnetic suction lift device is a suction lift of a lifting tool.
永磁吸吊器是起重工具的一种。
Pneumatic operation device to screen frame makes speed and height of screen lifting adjustable.
气压式离版装置，使抬版的速度、高度可调节。
The working principle, suction plate lifting separator and iron unit in this device were introduced.
介绍了该装置的工作原理，及其吸盘提升式分离机构和烫贴机构。
The working principle, suction plate lifting separator and iron unit in this device were introduced.
介绍了该装置的工作原理，及其吸盘提升式分离机构和烫贴机构。
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