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

A large central 'machine hall' forms the heart of the building, designed to house the large printing machines used by artists, around which the learning, business and gallery Spaces are arranged.

一个大的中央“机器大厅”形成了这座大楼的中心，它被设计成可以容纳艺术家们使用的大型印刷机器的地方，在它的周围，学习空间，商业空间和画廊被安排在这里。

youdao

He was a product of New York's Democratic machine, Tammany Hall, with no particular expertise in financial matters.

ECONOMIST: How Ferdinand Pecora won the blame game

Prosecutors said Kilpatrick ran a "private profit machine" out of Detroit's City Hall.

NPR: Jury Convicts Ex-Detroit Mayor Of Corruption

The hours of killing time before riding over to the hall, the putrid vending-machine meals on the run, the way-too-early-in-the-morning vans to the airport -- the dreary parts all become more than worth it when, for an hour or so, the singers can once again personally deliver a bit of happiness to the audiences who still adore their music.

CNN: What's better than a Grammy? Immortality