There are only French food, Chinese food, Italian food, Mexican food, or mixtures.

只有法国菜、中国菜、意大利菜、墨西哥菜，或者混合菜。

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The existence of organic chemistry is further justified by the importance of carbon compounds or mixtures in our lives.

有机化学的存在所以必要，还因为碳的化合物或混合物在我们日常生活中非常重要。

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The crude glucuronides of the various alcohols were isolated from the urine by extraction with ether or mixtures of ether and ethanol.

各种乙醇的粗葡萄糖醛酸甙从尿中用醚或醚和乙醇混合物提取分离的。

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For simple chest infections most of the chemists sold innocuous cough mixtures, lozenges or decongestants.

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Fracking uses high-pressure mixtures of water, sand or gravel and chemicals to crack rock formations and release oil and natural gas deep underground.

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Chromatography is a process used by scientists to separate complex chemical mixtures at the "nano, " or molecular, level by virtue of differences in absorbency.

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