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romami

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[求助] 请教给位大侠，下面这句话作何翻译啊？

RT ：Approximately 2.0 g of (EO)20(PO)70(EO)20 triblock copolymer
(Pluronic P123 from BASF, Co.) was dissolved in 20.0 mL of 99.5+% anhydrous ethanol, 200 proof (Acros Organics), and allowed to stir for 4 h.
这句话中的“200 proof (Acros Organics)"是什么意思啊？望各位大侠不吝赐教！

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yamakawa

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romami: 金币+2, ★★★很有帮助, 正解 2012-06-29 11:21:31

Alcohol proof is a measure of how much alcohol (ethanol) is contained in an alcoholic beverage. The term was originally used in the United Kingdom and was defined as 7/4 times the alcohol by volume (ABV). The UK now uses the ABV standard instead of alcohol proof. In the United States, alcoholic proof is defined as twice the percentage of ABV. The measurement of alcohol content and the statement of this content on the bottle labels of distilled beverages (also called liquors or spirits) is regulated by law in the United States. The purpose of the regulation is to provide pertinent information to the consumer.

网上看到的，希望对你有帮助，在我看来就写上99.5%无水乙醇意思就到位了