葡聚糖分子量标准物质 Molecular Weignt CRM of Dextran
聚乙烯热量标准物质 Calorimetric
化学需氧量标准物质 COD CRM
液体水分含量标准物质 CRMs for water content of liquid
标准物量单位 standard physical units
分子量标准参照物 molecular weight marker ; molecular mass marker
成为衡量某事物的标准 be the measure of something
采用蛋白质分子量标准物和纯化的重组蛋白质进行半干式蛋白质印迹，探讨半干式电泳印迹的多种因素对印迹效果的影响。
To elucidate the effect of the semi-dry electrophoretic transfer and its influencing factors in Western blot, the protein marker and purified recombination protein were used to analyzed.
举例来说，1997年，美国环保署意图降低地表臭氧量标准——一种部分由石油精炼排放的污染物造成的污染。
In 1997, for instance, the E.P.A. moved to reduce surface ozone, a form of pollution caused, in part, by emissions from oil refineries.
生化物需氧量(简写为BOD)：一种衡量有机物在水中的污染量的标准。
Biochemical oxygen demand - BOD: a measure of the amount of pollution by organic substances in water.
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