PPD

常见例句

The positive tuberculin rate of PPD test had a trend of ...
结论高校应进一步加强PPD试验的监测力度,提高PPD的监测质量。
The effects of crude oil properties, the structure of PPD and...
讨论了原油的性质、降凝剂的结构及试验条件对降凝效果的影响。
Data of PPD test for freshmen in 2001-2004 were analyzed.
结果河北省部分高校大学生接种人口数量明显增多;
Major supplier of special cement, cement licking PPD.
主要供应特种水泥，水泥舔加剂。
The positive rate of PPD test was no significant difference among each year.
各年度结核菌素阳性率差异无显著性 ;
PPD and the oil added with PPD are measured with gas chromatography.
析出的蜡与原蜡在碳数分布上有一定的区别,析出的蜡碳数呈双峰分布;