“拉底水平”的概念、定义、翻译、参考文献-科学参考

单词	拉底水平
释义	拉底水平 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	quadratic convergence quadratic convergence rate quadratic covariation process quadratic-covariation process quadratic criterion quadratic curve quadratic curve discriminant quadratic cylinder quadratic dependence quadratic deviation quadratic diameter quadratic differential quadratic discriminatory analysis quadratic divergence quadratic domain quadratic dual quadratic dual problem quadratic dual space quadratic effect quadratic eigenvalue problem quadratic electro-optical tensor quadratic electrooptical tensor quadratic electro optic effect quadratic electro-optic effect quadratic element

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。