ock
英
美
网络 运算控制键
双语例句
- Easter egg: doc ock sings "if I was a rich man"
复活节彩蛋：章鱼博士的歌“假如我是富人” - Ock quality designation ( RQD) is one of the most important quantitative indices on estimating and classifying engineering rock mass, and its concept and theory have been developed significantly during last thirty years.
岩石质量指标RQD是岩体工程分类和稳定性评价中最常用的定量描述参数。30多年来，RQD的概念和理论研究有了重大进展。