white copper

Design drawings and then dried dried, printed on thick white paper to form a work plan, work plan will be glued to steel or titanium plate, copper plate on.

然后把设计图稿晒干风干，印在厚的白纸上，形成工作图，将工作图粘在钢板或钛金板、铜板上。

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White sauces shouldalways be made in a heavy-bottomed enameled, stainless steel, pyrex, porcelain, or tin-lined copper saucepan.

做白色酱汁时一定要用厚底的锅子，搪瓷的，不锈钢的，耐热玻璃，瓷质的或是镀锡的铜锅都可以。

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Direct production of white metal and blister copper by cyclonic smelting

用旋涡熔炼法直接生产白冰铜和粗铜

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H 2 O can turn anhydrous copper ( II ) sulphate solid from white to blue.

水可把无水的硫酸铜 ( II ) 固体由白色变成蓝色.

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Al 2O 3, a greyish white material, is usually produced at the join between the copper wire and the aluminum wire in the supply line of a building.

建筑物供电线路中的铜线与铝线连接处常常生成一种灰白物质&三氧化二铝，极易引发建筑物火灾。

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