travelling block

基本解释

Hoisting system: drawworks, crown block, travelling block, hook elevator link, wire rope, and its fixing clamping, plates and grips etc.
提升系统：绞车、天车、游动滑车、大钩吊环、钢丝绳及固定绳卡等。
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When hoisting any large or heavy equipment off the catwalk always check the Working Load Limit (WLL) of the air winch, or use the travelling block or crane if available.
当从猫道上提升体积大或较重的设备时，要检查气动绞车的额定工作负荷，或使用游车或吊车（如果有）。
Then in accordance with classification method of the passive, active and semi-active system, the performance of compensator mounted between travelling block and hook is studied deeply.
对被动式、主动式和半主动式游车与大钩间装设的升沉补偿装置性能进行比较分析。