Simultaneously, some rather instable rock masses were formed in some parts of the upstream and downstream side-walls of the main machine hall.

同时，在厂房上下游边墙的局部地段形成比较严重的不稳定岩体。

youdao

Machine hall consists of two tiers: on the upper one there are generators and turbines, on the lower - pumps and pipelines. It is quite hot in the hall and rather noisy.

机械大厅由两层组成：上一层是发电机和汽轮机，下层是泵和管道。大厅内异常闷热嘈杂。

youdao

Machine hall consists of two tiers: on the upper one there are generators and turbines, on the lower - pumps and pipelines. It is quite hot in the hall and rather noisy.

机械大厅由两层组成：上一层是发电机和汽轮机，下层是泵和管道。大厅内异常闷热嘈杂。

youdao