试验中的“空白试验”，是指在不加供试品或以等量溶剂替代供试液的情况下，按同法操作所得的结果。其作用是排除实验的环境（空气、湿度等）、实验所用的药品（指示剂等）实验操作（误差、滴定终点判断等）对实验结果的影响。
空白试验
网络释义专业释义
双语例句原声例句
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在任何情况下，必须进行空白试验。
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本文所提出的空白试验及误差分析方法，为测试微反装置的性能和判断故障提供了简捷可靠的手段。
The blank test and errors analysis suggested in this paper provide a simple and effective method to evaluate the performance of a microreactor.
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在实验基础上，建立空白试验、准确度质量控制图，以便定期对各种监测数据提供可行的质量保证措施。
Based on the experiments the quality control maps of blank test and accuracy were set up to regularly provide effective measures of quality control for all sorts of monitoring data.
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So, you didn't know at the beginning, you knew you were enrolled in the trial, they gave you a shot, you didn't know whether you were part of the real group that got the test vaccine or the placebo group that got the control; turned out that Bonnie was part of the control group.
一开始你可能不清楚全过程,你只知道你参与了一项试验,他们给你打了一针,你不知道你是属于接种了,试验疫苗的真实试验组,还是属于被注射了安慰剂的空白对照组,结果显示,邦妮属于对照组
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