These are reels equipped with wire rope (non-electrical cables) to provide spring assistance to the lifting of heavy items such as power tools, looped cables, and other loads.
这些轴中都安装了钢丝绳（无电缆），帮助提升重型设备，比如电力工具，环形电缆和其他的荷载。
The movable device mainly consists of the nut, bolt, lifting wedge, backseat, supporting seat of the clamp plate, spring and pressure plate and so on.
活动装置主要有螺母、螺栓、提升楔块、后座、座板支座、弹簧以及压板等组成。
Engagement between the spring arms and the sliding surface creates a lifting force which opens the valve.
该弹簧臂与所述滑动表面之间的接合产生了开启所述阀的上举力。
The lifting mechanism is a spring, which is used for adjusting and positioning the height of the transverse walk device.
各拉升机构为拉簧，以调整和定位横向行走机架的高度位置。
The lifting mechanism is a spring, which is used for adjusting and positioning the height of the transverse walk device.
各拉升机构为拉簧，以调整和定位横向行走机架的高度位置。
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