名词
中文翻译：煤层单位
同义词：
['coal measure', 'coal seam unit例句：1. The coal measures unit is a crucial part of the mining process.（煤层单位是采矿过程的关键部分。）']
例句：
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1. The coal measures unit is a crucial part of the mining process.
煤层单位是采矿过程的关键部分。
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2.The coal measures unit is responsible for extracting the coal from the ground.
煤层单位负责从地下提取煤炭。
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3. The coal measures unit is used to measure the thickness of the coal seam.
煤层单位用于测量煤层的厚度。