天轮 meaning in Chinese

[采矿工程] head sheave; (提升设备) hoisting sheave

Construction technology for sheave chamber in jilongshan gold mine
鸡笼山金矿天轮硐室施工技术
Structure optimum design of double wheel and direct balance pumping - units
双天轮直平式抽油机结构优化设计
Customers were queuing at the post office to use its services on the opening day
顾客在启用首天轮候服务。
Design of a new - style and long - stroke pumping unit with variable diameter wheel
新型双变径天轮式抽油机的设计

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