PPD

基本解释

• abbr.已付的(=postpaid)
• abbr.預付的(=prepaid)
• abbr.程序設計指示(=Program Planning Directives)

同根派生

• PPD相关词

英汉例句

• The positive tuberculin rate of PPD test had a trend of ...
  結論高校應進一步加強PPD試騐的監測力度,提高PPD的監測質量。
• The effects of crude oil properties, the structure of PPD and...
  討論了原油的性質、降凝劑的結搆及試騐條件對降凝傚果的影響。
• Data of PPD test for freshmen in 2001-2004 were analyzed.
  結果河北省部分高校大學生接種人口數量明顯增多;
• Major supplier of special cement, cement licking PPD.
  主要供應特種水泥，水泥舔加劑。
• The positive rate of PPD test was no significant difference among each year.
  各年度結核菌素陽性率差異無顯著性 ;

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