名词
中文翻译：长壁矿柱
同义词：
['longwall', 'longwall mining face']
例句：
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1.The longwall mining process is crucial for the extraction of coal.
长壁采矿过程对于煤炭的提取至关重要。
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2. The longwall mining face is a critical area where safety measures must be taken.
长壁工作面是一个关键的区域，必须采取安全措施。
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3.Longwall mining has been widely used in the extraction of hard rock ore.
长壁采矿法在硬岩矿石的开采中得到了广泛应用。