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单词 very fine powder
例句
原声例句
英国学生科学读本

These lumps are ground into very fine powder, and then the powder is pressed into hard blocks.

人们把这些大块石墨,先磨成细粉,又压成硬块儿。

透视百科影视类

After that, it becomes a very fine brown powder.

之后,它变成一种非常细的棕色粉末。

科学洞察双语版

The difference is that activated charcoal is burned at a higher temperature so it breaks down into a very fine powder which gives it a larger surface area than a chunk of charcoal on your grill.

它们的区别在于活性炭的燃烧温度更高,所以木头能分裂成非常细的粉末,使得它的表面积比你烤架上的块状木炭要大。

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