例句 /

Methods of qualitative and quantitative analysis for benzene,toluene,ethyl benzene,dimethyl benzene in blood and urine.

Methods of qualitative and quantitative analysis for benzene,toluene,ethyl benzene,dimethyl benzene in blood and urine.

血、尿中的苯、甲苯、乙苯、二甲苯的定性及定量分析方法.