英语词汇“protected coal seam”的翻译、意思、用法、释义-英汉双解词典-注文网

单词	protected coal seam
释义	protected coal seam 被保护煤层
随便看	black spruce black spruce (picea mariana b. s. p.) black spruces black spun black spun rayon netting black squall black square black square head bolt black square nut black squirrel black squirrels Black's reagent Blackstad blackstaff Blackstaff R. blackstaffs black stain black staining Blackstairs, Mt. blackstairs mt. black stalk black stamping pad black start blackstart black start service 一朵鞓红一村桑柘一村烟一条古时水一来长安道一杯一杯复一杯一杯且买明朝事一杯弹一曲一杯春露莫留残一杯未尽一杯相属すくりーんきゃぷちゃーすくりーんしょっとすくりーんせーばーすくろーるすくわっとすくーたーすくーなーすくーばすくーぷすくーりんぐ