名词
中文翻译：Unknown
同义词：
['unloader', 'rock-loader', 'rock-breaker', 'rock-crusher']
例句：
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1. The rocker unloader was responsible for loading the trucks with rocks.
卸货员负责用卡车装载石头。
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2. The rock-loader is used to break down large rocks into smaller pieces.
岩石破碎机用于将大岩石破碎成小块。
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3. The rock-crusher is used to crush ore and other materials for mining.
岩石破碎机用于采矿过程中粉碎矿石和其他材料。