英语词汇room and pillar mining的读音、用法、中文释义、短语词组及例句-英汉双解词典

单词	room and pillar mining
释义	room and pillar mining 英?[ru:m ?nd ?pil? ?ma?n??] 美?[rum ?nd ?p?l? ?ma?n??] 释义房柱式采煤法行业词典煤炭房柱式采煤法???"每隔一定距离先采煤房直至边界,再后退采出煤房之间煤柱的采煤方法。"???
随便看	nitrocellulose rayon nitrocellulose rayon silk nitro cellulose resin nitrocelluloses nitrocellulose silk nitrocellulose soft varnish nitrocellulose staple fiber nitrocellulose staple fibre nitrocellulose surface coat nitrocellulose transparent coating nitrocellulose varnish nitrocellulose varnish for woodwork nitrocellulos filte nitrocellulosic nitrocelluose nitrocementation nitrochalk nitro chalk nitro-chalk nitro-chalks nitrochlor nitrochlorobenzene nitro chlorobenzene nitro-chlorobenzene nitrochlorobenzol

英汉双解词典包含4367426条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。

room and pillar mining