background value

基本解释

The investigation includes microelement background value and combination law of road dusts in element character of geochemistry.
路面积尘微量元素地球化学特征研究包括元素背景值和组合规律研究。
The structure method of background value in grey system GM(1,1) model is considered to have an important influence on the adaptability and precision of GM(1,1) model.
灰色GM（1，1）模型中的背景值构造法是影响模型适应性和精度的关键因素。
As lead and arsenic pollution element are skew distribution, statistics of a natural background value and a content of lead and arsenic are worked out using median method of skew distribution.
由手铅、砷污染元素呈偏态分布，故采用偏态分布中的中位数法作了铅、砷自然背景值及含量的统计。

You have to translate the value of your military background and experience to how it meets their specific needs.
FORBES: Career Advice For The Military To Civilian Transition
So YES, use this as a springboard to talk about your personal background AND weave in your professional accomplishments and value.
FORBES: Assume the Positive for Career Success: Talk to the AND
S. military background how to speak the language of the military and military procurement programs so that they can add value much more quickly with our Department of Defense customers.
FORBES: Move up http://i.forbesimg.com t Move down

背景值
NH4+-N in water exceeding serious, DO serious shortage of heavy metal pollution in general is not prominent, but the content of the soil in Shanghai for more than several times the background value.
水体中NH4+-N严重超标，D0严重不足，重金属总体上污染不突出，但含量超过上海市土壤背景值的数倍。
农业科学
背景值
Whether new orchard soil effective copper background value is 0.83mg. kg-1;range value is 0.17mg. kg-14.16mg. kg-1. The soil effective zinc background value in the new orchard is 2.52mg. kg-l;Range values is 0.83mg. kg-1- 7.64mg. kg-1.
老果园土壤铜背景值为:37.51mg.kg-1,范围值为:18.81mg.kg-1～74.83mg.kg-1。
物理学
背景值
本底数值
本底值