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关注：1
2013-05-23 12:21
求翻译：用天平准确称取20g样本放入250ml的烧杯中，并及时用保鲜膜密封静置一个小时是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
用天平准确称取20g样本放入250ml的烧杯中，并及时用保鲜膜密封静置一个小时
问题补充： |
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2013-05-23 12:21:38
Balances accurately weighed 20g sample placed in a 250 ml beaker with plastic wrap and seal stand for one hour in a timely manner
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2013-05-23 12:23:18
With accurate scales from 20 g sample is placed in the 250 ml beaker, and the timely in a fresh film seal put a one-hour
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2013-05-23 12:24:58
正在翻译，请等待...
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2013-05-23 12:26:38
Balance accurate to take samples of 20G into 250ml's beakers, and promptly sealed with cling film aside for an hour
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2013-05-23 12:28:18
正在翻译，请等待...
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