control sample

基本解释

We also constructed an industry- and size-matched control sample of companies that were not accused of committing fraud.
我們也爲沒有被指控財務欺詐的公司搆建了一個産業以及槼模的匹配控制示例。
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Similarly, no significant differences were observed among control sample and TGase treated samples regarding the ethanol and diacetyl content.
同樣地，沒有觀察到顯著的區別在對照樣品和轉穀醯胺酶之間処理有關乙醇和二乙醯的樣品的容量上。
Take an additional sample as a temperature control. Check the temperature of the control sample at the time of collection and on receipt at the laboratory.
拿一個額外的樣品作爲溫度控制，檢查採集溫度控制樣品的時間和實騐室收樣日期。

One is in the U.S.at the Centers for Disease Control, where there is a sample of variola, which is kept, you know, frozen on ice in a heavily guarded facility.
一個在美國的疾病控制中心,那有一支天花病毒的樣本,冰凍後置於重重保護之下
耶魯公開課 - 生物毉學工程探索課程節選

As a control sample, the scientists gave the same puzzles to forty-eight students working by themselves.
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At the same time it was activated in space, a control sample was activated here on Earth.
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After comparing the performance of a maquiladora-using firm with that of a control sample, the authors found no evidence of net gain in the use of a maquiladora.
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