background value

 
       
  • 背景值

background value的用法和樣例:

例句

  1. The background concentrations of ambient air pollutants were used as evaluation stan-dards.
    采用大氣污染物濃度的背景值為評價(jià)標準。
  2. In the Campania region, baseline and background values are often coincident, where the samples represent catchment basins away from urban or industrial areas.
    在坎帕尼亞地區,樣品代表的是遠離市區或者工業(yè)區的匯水盆地,所以基線(xiàn)值和背景值經(jīng)常是吻合的。
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