We have heard about this new type of machine long before.

关于这类新型机器，我们很久以前就听说过。

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This type of equipment are generally long-running, or even a long non-stop machine.

这类设备一般都是长时间运行，甚至很久不停机。

youdao

This type of equipment are generally long-running, or even a long non-stop machine.

这类设备一般都是长时间运行，甚至很久不停机。

youdao