对照样品 meaning in English

check sample
control sample

Benzoic acid was used as the control substance , the antimicrobial activity of the volatile oil was tested by bacteriostatic method of agar plate
采用琼脂平板抑菌法，以苯甲酸为对照样品对挥发油的抑菌作用进行研究。
Optimized sample showed a reduction of approximate 78 % and 90 % respectively than the untreated with respect to the contents of soy proteins and oligosaccharides
与对照样品相比，优化工艺样品的乳清中蛋白质和低聚糖的含量分别减少了78 %和90 % 。
The new method is used to test the repellent effect of a few kinds of anti - mite fabric , and the results are compared with that by the conventional method
新方法对每一个样品进行独立培养，每个培养皿都盖上皿盖，消除了试验样品与对照样品的相互干扰。