以下为句子列表：
英文: A Chinese company had identified the additive as glycerin, a safe sweetener and thickener. But it was really diethylene glycol, a low-cost substitute commonly used in automobile antifreeze.
中文: 一家中国公司已经鉴定添加物为丙三醇，是一种无害的使产品变甜变稠的配料。但实际上是二甘醇，是一种经常用在机动车防冻剂里的低成本替代品。
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英文: A new method on extraction of phenanthrene from crude anthraceneis given, which includes azeotropic dissolution with ethylene glycol, extraction of carbon tetrachloride, treatment of sulfuric acid and ethyl alcohol recrystallization, in the end, the best
中文: 研究了从粗蒽中提取菲的方法，即用乙二醇对原料进行共沸，以四氯化碳为溶剂并用硫酸处理，最后用无水乙醇重结晶，制定出最佳的工艺路线.
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英文: A substance, often a liquid such as ethylene glycol or alcohol, mixed with another liquid to lower its freezing point.
中文: 防冻剂，防冻液，抗凝剂一种物质，通常是液体，如乙二醇或酒精，和另一种液体混合来降低冰点
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英文: Abstract: A new method on extraction of phenanthrene from crude anthraceneis given, which includes azeotropic dissolution with ethylene glycol, extraction of carbon tetrachloride, treatment of sulfuric acid and ethyl alcohol recrystallization, in the end,
中文: 文摘:研究了从粗蒽中提取菲的方法，即用乙二醇对原料进行共沸，以四氯化碳为溶剂并用硫酸处理，最后用无水乙醇重结晶，制定出最佳的工艺路线.
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英文: Acetaldehyde(ethanol) An aldehyde, CH3CHO, that is an intermediate in the conversion of pyruvic acid to ethanol during the final stage of glycol sis during anaerobic respiration in plants.
中文: 乙醛：乙醛CH3CHO,在植物无氧呼吸的最后一个环节－糖酵解中把丙酮酸转化为乙醇的中间体。
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