background value的用法和样例：
例句
- The background concentrations of ambient air pollutants were used as evaluation stan-dards.
采用大气污染物浓度的背景值为评价标准。 - In the Campania region, baseline and background values are often coincident, where the samples represent catchment basins away from urban or industrial areas.
在坎帕尼亚地区，样品代表的是远离市区或者工业区的汇水盆地，所以基线值和背景值经常是吻合的。
background value的相关资料：
临近单词
Background.
background
background equivalent activity
background of market marketing
Background Ecological Footprint
background pressure of atomizer
background clutter reflectivity
Background to the CCM elections
background processing interrupt
background of liberal education
background suppressed filtering
background diabetic retinopathy
