名词
中文翻译：硅砂
同义词：
['silica sand', 'silicon dioxide sand']
例句：
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1.The engineer used a special machine to grind the silica-sand into fine powder.
工程师使用一种特殊的机器将硅砂磨成细粉。
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2.The silica-sand is used in making glass and ceramics.
硅砂用于制造玻璃和陶瓷。
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3. The sand was so fine that it could pass through a sieve without leaving any residue.
沙子非常细，可以通过筛子而不留下任何残留物。