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Guest
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如何计算我的家蚕(粘性阻尼的直流电动机);年(粘性阻尼的车)。以及如何计算R号直流电动机轴(半径)?
谁能谁知道答案plaese答复我尽快??我真的很感激你的帮助...非常感谢你.!!!!!:“
谁能谁知道答案plaese答复我尽快??我真的很感激你的帮助...非常感谢你.!!!!!:“
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