Наука и техника
Source: Computational Materials Science, Volume 266
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Such a motor is great if you want to spin a fan, for example, because it functions well at high speeds with low torque.
（二）违反国家规定，收购铁路、油田、供电、电信、矿山、水利、测量和城市公用设施等废旧专用器材的；