The very first installations were steel tanks in a rockchamber.
最早是在岩洞内安装钢罐。
2
The failure of soft rockchamber is a dynamic problem. The new concept "disturbance creep" is proposed in the paper.
软岩洞室群的破坏是一个动态问题,因此本文提出了扰动蠕变的概念。
3
With the mining depth increased, the stability control of the deep soft rockchamber group became a difficult problem in the engineering industry at home and abroad.