Stars are spinning balls of roiling, electrically charged gas, and thus typically generate magnetic fields.
恒星是旋转着的带电气态球体,所以会产生磁场。
It used for powder art, camphor aroma balls, powder metallurgy, magnetic materials, ceramics and other industries.
多用于美术粉饼、樟脑芳香球、粉末冶金、磁性材料、陶瓷等行业。
It used for powder art, camphor aroma balls, powder metallurgy, magnetic materials, ceramics and other industries.
多用于美术粉饼、樟脑芳香球、粉末冶金、磁性材料、陶瓷等行业。
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