“硝”的拼音

制革工人硝皮以制作皮鞋.Tanners tan hides to make leather shoes.含有与氮原子相连的硝基的物质称为硝胺.Nitramines are substances which contain a nitro group bonded to nitrogen.较好的配方是那些高硝基增塑的硝化棉粘合剂配方.The preferred compositions are the highly nitroplasti...

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