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[求助]
請教給位大俠,下面這句話作何翻譯。
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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. 這句話中的“200 proof (Acros Organics)"是什么意思啊?望各位大俠不吝賜教! |
至尊木蟲 (正式寫手)
| 標(biāo)準(zhǔn)酒度(Alcoholic proof),是衡量酒精含量的標(biāo)識方式。這種標(biāo)識方式在美國常用,其定義為酒精體積百分?jǐn)?shù)的2倍。例如, 40%乙醇, 相當(dāng)于80 PROOF。英國定義為酒精體積百分?jǐn)?shù)的7/4倍。所以,200 proof 是 100% 乙醇. |
木蟲 (正式寫手)
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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. 網(wǎng)上看到的,希望對你有幫助,在我看來就寫上99.5%無水乙醇意思就到位了 |
木蟲 (正式寫手)
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