PPD

基本解釋

The positive tuberculin rate of PPD test had a trend of ...
結(jié)論高校應(yīng)進(jìn)一步加強(qiáng)PPD試驗(yàn)的監(jiān)測力度,提高PPD的監(jiān)測質(zhì)量。
The effects of crude oil properties, the structure of PPD and...
討論了原油的性質(zhì)、降凝劑的結(jié)構(gòu)及試驗(yàn)條件對降凝效果的影響。
Data of PPD test for freshmen in 2001-2004 were analyzed.
結(jié)果河北省部分高校大學(xué)生接種人口數(shù)量明顯增多;
Major supplier of special cement, cement licking PPD.
主要供應(yīng)特種水泥，水泥舔加劑。
The positive rate of PPD test was no significant difference among each year.
各年度結(jié)核菌素陽性率差異無顯著性 ;