单词 | headframe |
释义 | headframe [`hed´frām] MINING ENGINEERING 1. The frame at the top of a shaft, on which is mounted the hoisting pulley. Also known as gallows; gallows frame; headstock; hoist frame. 2. The shaft frame, sheaves, hoisting arrangements, dumping gear, and connected works at the top of a shaft. Also known as headgear. |
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