“abandoned workings”的概念、定义、翻译、参考文献-科学参考

单词	abandoned workings
释义	abandoned workings [ǝ`ban·dǝnd `wǝr·kiŋz] ^{MINING ENGINEERING} Deserted excavations, either caved or sealed, in which further mining is not intended, and opening workings which are not ventilated and inspected regularly. Also known as abandoned mine.
随便看	superionic conduction superionic conductor superior superior air superior alveolar canals superior conjunction superior ganglion superior mesenteric artery superior mirage superior planet superior tide superior transit superior vena cava superjacent superjacent roadway system superjacent waters super-large-scale integrated circuit superlattice superlayer superleak superline superluminal radio source supermale supermassive star supermature

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