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pxq2336鐵桿木蟲 (正式寫手)
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[交流]
【求助】求助翻譯一句話
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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. 其中的200 proof是啥意思???? |
鐵桿木蟲 (正式寫手)
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