“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	nonlinear instability nonlinear integral equation nonlinear integral operator nonlinear integrated optics non-linear interaction nonlinear interaction non-linear inverse theory of dynamic geodesy nonlinearity nonlinearity parameter nonlinear junction detector nonlinear Klein Gordon equation nonlinear Klein-Gordon equation nonlinear Landau damping non linear laser spectroscopy non-linear laser spectroscopy nonlinear laser spectroscopy nonlinear lattice dynamics nonlinear least squares fitting nonlinear least squares problem non-linear load nonlinear magneto-optical Kerr effect non linear mapping non-linear mapping nonlinear mapping nonlinear master equation

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