It was in fact merely a new name for continued technological advance and further progress in labor-saving equipment.

其实，它不过是持续的科技进步和省力设备不断改进后的新名称而已。

youdao

It was in fact merely a new name for continued technological advance and further progress in labor-saving equipment.

其实，它不过是持续的科技进步和省力设备不断改进后的新名称而已。

youdao