This article introduces the design feature and performance test of DK9 motor coach with two-phase-double-circuits in Beijin Underground.

  • 本文介绍了北京地铁DK9型电动客车采用两重两相斩波调压的设计特点和性能试验。

  • 互联网摘选 2025-03-02 20:05:24

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