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词汇
head sheave, sheave wheel
释义
head sheave, sheave wheel
天轮;又称“绳轮”。设置在井架或暗井顶部,承托提升钢丝绳的导向轮。分“固定天轮keyed headsheave”和“游动天轮floating headsheave”。
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更新时间:2025/2/27 13:25:57