The reaction combines an iron powder, which is in here, and oxygen, which diffuses through the membrane of the little packaging.
该反应结合了这里的铁粉和通过小包装膜扩散的氧气。
Iron powder
原声例句
Crash Course 综合篇
科学大揭秘
A system called the solid fuel oxygen generator, also known as' perchlorate candles', consists of canisters that contain a mixture of powdered sodium chlorate and iron powder.
一种称为固体燃料氧气发生器的系统，也称为“高氯酸盐蜡烛”，由装有氯酸钠粉末和铁粉混合物的罐组成。
英语百科
Iron powder
Iron powder is powdered iron. It has several uses; for example production of magnetic alloys and certain types of steels.
Iron powder is formed as a whole from several other iron particles. The particle sizes vary anywhere from 20-200 μm. The iron properties differ depending on the production method and history of a specific iron powder. There are three types of iron powder classifications: reduced iron powder, atomized powder, and electrolyte iron powder. Each type is used in various applications depending on their properties. There is very little difference in the visual appearances of two types of iron powder.
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