This article introduces the features of soft_starter and converter, the procession of the technology evolution and its applications in water supply system for cities.
介绍软启动器、变频器的特点，技术演变过程及在城市供水系统中的应用。
The thesis insists that the technology Evolution can be a category in the philosophy of technology.
本文认为，技术进化可以作为技术哲学的一个范畴。
The thesis insists that the technology Evolution can be a category in the philosophy of technology.
本文认为，技术进化可以作为技术哲学的一个范畴。
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