“undercutting level”的概念、定义、翻译、参考文献-科学参考

单词	undercutting level
释义	undercutting level Encyclopedia 工学开拓工程释 undercutting level拉底水平为地下矿山回采工作开辟底部自由面，由拉底巷道向两侧扩帮，将矿房底面拉开至足够大，补充爆破空间或者为应力作用下矿石自然崩落创造条件而进行开挖的作业水平。
随便看	Shanghai opera music Shanghai Opera School Shanghai Orienial Art Center Shanghai Oriental Radio Station Shanghai over 24 Hours Shanghai painting school Shanghai Patriotic Society for Dramatic Circle Shanghai Peace Negotiation 1931 Shanghai Peking Opera Troupe Shanghai People Square Underground Complex Shanghai People's Radio Shanghai People’s Art Theatre Shanghai Photography Society Shanghai Pingtan Art Training Institute Shanghai Pingtan Troupe Shanghai planning code Shanghai Postal Museum Shanghai Public Library Shanghai Publishers' Association Shanghai Puck Shanghai Pudong International Airport Shanghai Pudong International Airport Terminal（T1、T2、Satellite） Shanghai Qing Mouse Shanghai Railway Museum Shanghai Record Manufacturing Co., Ltd

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