dwa 中文意思是什麼
dwa
解釋
空氣鉆井-
Abstract : the basic circuit principle of ac drive traction converters is introduced, whose technical characteristics and development process are also described in details combinating the main parameters of traction converters for ac drive locomotives, such as dj electric locomotive, nj1 diesel locomotive and dwa metro engineering machine
文摘:闡述了交流傳動牽引變流器的基本電路原理，結合國產dj型電力機車、 nj1型內燃機車、 dwa型地鐵工程車等交流傳動機車牽引變流器的主要技術參數，對交流傳動牽引變流器的技術特點及其發展過程作了較為詳細的敘述。
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