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icebergwu木虫之王 (文学泰斗)
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[求助]
汉译英
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请虫友帮忙翻译一下下面这段文字 取少物质A样品，用甲醇将其完全溶解，随后逐滴加入水，待溶液出现浑浊，震荡后不消失，再逐滴加入甲醇至浑浊溶解，室温放置数小时后出现大量针状结晶，再次逐滴加入甲醇至沉淀完全溶解，利用封口膜将容器密封，在封口膜上留有小孔，室温放置，直至出现单晶，进行检测。 |
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icebergwu: 金币+50, 翻译EPI+1, ★★★★★最佳答案 2016-10-25 09:05:40
icebergwu: 金币+50, 翻译EPI+1, ★★★★★最佳答案 2016-10-25 09:05:40
| A small sample of A was dissolved completely in MeOH followed by dropwise addition of water until there was insoluble solid formed in the mixture. Another portion of MeOH was added until the solid dissolved, and the solution was left at RT. After few hours, some needle shaped crystals were formed, and MeOH was added to dissolve the crystals. The container of the mixture was then covered by a piece of punctured parafilm and left at RT until crystals were formed. The crystals were collected and tested. |
2楼2016-10-25 02:58:44
