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单词 black powder
例句
原声例句
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And this black mass is a fine black powder.

而这黑色物质,是一种细小的黑色粉末。

英语测试合集

Many said no way rain would wash the black powder from the atmosphere.

许多人说 雨水不可能冲走大气中的黑色粉末。

TED演讲(视频版)当月精选

This fine black powder consists of everything that we had coated on the electrodes in the factory.

这种细小的黑色粉末由我们在工厂涂在电极上的所有物质组成。

科学大揭秘

For example, aluminum powders are preferred for glass surfaces and brass, whereas granulated jet black powder is used on silvery surfaces to create better contrast.

例如,铝粉是玻璃表面和黄铜的首选,而粒状喷射黑粉用于银色表面以产生更好的对比度。

经济学人 Science and technology

As is usual in the industry, once graphite is purified it is turned into tiny spheres that form a fine black powder, before being shipped to battery-makers.

按照行业惯例, 石墨一旦被提纯, 就会变成微小的球体, 形成精细的黑色粉末,然后再运往电池制造商。

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