“rock mass classification”的概念、定义、翻译、参考文献-科学参考

单词	rock mass classification
释义	rock mass classification Encyclopedia 理学水利水电工程地质释 rock mass classification岩体质量分级利用勘探试验中所取得的某些参数，结合地质观察，以量化概念来判别岩体性能优劣的围岩质量分级。
随便看	second-order phase transition second-order predicate second-order predicate calculus second-order predicate logic second-order process second-order property second order spatial coherence second-order spatial coherence second order spectrum second-order sufficient condition second-order system second order temporal coherence second-order temporal coherence second order term second-order theory second-order variation second order wave force second organic aerosol compounds second orthogonality relation second Pappus theorem second partial derivative second pendulum second-person virtual reality second plenary session of ninth central committee of CPC Second Plenary Session of Seventh CPC Central Committee

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。