放射性浓度标准 radiation concentration guide ; radioactivity concentration guide
血液酒精浓度标准 blood alcohol concentration ; BAC
安全氧浓度指标 safety index of oxygen content
标准浓度 [分化] normal concentration ; standard concentration
浓淡标度 half-tone scale
水质目标浓度值 target concentration of water quality
浓度排放标准 [环境] emission concentration standard
最大污染物浓度指标值 MCLG
并对酶标抗原浓度、血清保存时间与阳性率的关系及抗原保存期限作了观察。
The relationship among concentration of enzyme-labelled antigen, serum reservation duration, positive rate and reservation duration of antigen were observed.
配制上述标样溶液，用紫外-可见分光光度计测量吸光度，然后以浓度和吸光度来绘制曲线。R2要大于0.995。
Prepared standard solution above for calibration curve, and run UV-VIS program. Then draw a diagram with absorption and concentration. R2 should be greater than 0.995.
利用蒸馏水标校测量系统等效的吸声系数，采用已知浓度的硫酸镁溶液来标校测量系统的测量精度。
The equivalent sound absorption coefficient of the system can be calibrated by the distilled water. The accuracy of the system can be gotten by the magnesium sulfate solutions of known concentration.
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