英语词汇“leading heading”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	leading heading
释义	leading heading leading heading [′lēd·iŋ ′hed·iŋ] (mining engineering) The heading of a pair of parallel headings that is a short distance in front of the other; used to drain a mining area. A heading dug into the solid coal before the advance of the general face.
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