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[求助]
請(qǐng)教給位大俠,下面這句話(huà)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(huà)中的“200 proof (Acros Organics)"是什么意思。客魑淮髠b不吝賜教! |
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木蟲(chóng) (正式寫(xiě)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(duì)你有幫助,在我看來(lái)就寫(xiě)上99.5%無(wú)水乙醇意思就到位了 |
木蟲(chóng) (正式寫(xiě)手)
至尊木蟲(chóng) (正式寫(xiě)手)
| 標(biāo)準(zhǔn)酒度(Alcoholic proof),是衡量酒精含量的標(biāo)識(shí)方式。這種標(biāo)識(shí)方式在美國(guó)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(guó)定義為酒精體積百分?jǐn)?shù)的7/4倍。所以,200 proof 是 100% 乙醇. |
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