- 推荐网络例句
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Ethylanthraquinone is frequently used as the carrier and the solvents are usually mixed polar and nonpolar organics.
蒽醌法是生产过氧化氢的主要方法。
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Where should I go to apply for a cellular phone number?
我该到哪里去申请一个移动电话号码？
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The basic design procedure of forming the controller of an electric water heater with a single chipper is analysed.
介绍了用单片机构成电热水器控制器的基本设计方法。
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