// And the reader is no longer available when we return
Such a motor is great if you want to spin a fan, for example, because it functions well at high speeds with low torque.
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Фото: Benoit Tessier / Reuters
每一轮技术浪潮中，真正穿越周期的，都是那些能够承受波动、理解结构、做好长期准备的人。