PPD

基本解釋

• abbr.已付的(=postpaid)
• abbr.預(yù)付的(=prepaid)
• abbr.程序設(shè)計指示(=Program Planning Directives)

同根派生

• PPD相關(guān)詞

英漢例句

• 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 ;

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