useful minerals 中文意思是什麼
useful minerals
解釋
有用礦物-
The useful ore mineral is barite and the gangue minerals are mainly calcite, clay mineral and quartz et al
礦石礦物為重晶石,脈石礦物主要有方解石、粘土礦物和石英等。 -
Their design is simple, and are especially useful and economical in screening applications for coarse crushed stones and minerals
振動篩廣泛適用於塑料磨料化工醫藥建材糧食食品碳素化肥砂石煤炭等行業。
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