名词
中文翻译：多级分煤层
同义词：
['multi-split coal seam', 'multiple split coal seam']
例句：
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1. Theengineers are working on a project that involves multiple splitting coal seams.
工程师们正在处理一个涉及多个分煤层的项目。
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2. Due to the complexity of the mine, it's important to ensure that all the multi-splitting coal seams are properly mined.
由于矿井的复杂性，确保所有多级分煤层都被适当地开采是很重要的。
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3. The company is exploring new ways to improve its efficiency by using multi-splitting coal seams.
该公司正在探索新的方法来提高其效率，通过使用多级分煤层。