Translation of "Machinery" in Chinese

Something must be wrong with the machinery.

這個機器一定有什麼地方不對勁。

An old worker was found repairing machinery in the workshop.

有人发现一个老工人在车间修好机器。

Then arose the question of where we were to get the necessary machinery.

于是出现了一个问题，哪里能找我们需要的机器。