英语词汇“extremely irregular coal seam”的意思、用法、释义、翻译、读音、例句、短语、词组-英汉翻译词典

单词	extremely irregular coal seam
释义	extremely irregular coal seam 极不稳定煤层; 煤层厚度变化极大,呈透镜状、鸡窝状,一般不连续,很难找出规律,可采块段分布零星的煤层。
随便看	departmental projects departmental rate departmental rate of gross margin departmental rates of gross margin departmental revenue departmental secondary distribution Departmental Secretary departmental special expenditure departmental specialty stores departmental standard departmental standard specimen departmental standard specimen service departmental store departmental stores account departmental summary departmental support system departmental system departmental system of management departmental teacher departmental teaching departmental teaching plan departmental trading accounts departmental trading accouts departmental unit cost departmental variance

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