machinery
n. 机器，机械（尤指大型机械）；体系，机制；运转部份，装置
例句
They set the machinery in motion.
他们将机器开动起来。
《牛津词典》
There was a whirring of machinery.
有机器发出的嗡嗡声。
The old machinery was still going strong.
这台旧机器依然状况良好。
《柯林斯英汉双解大词典》
