1) relative baseline
相对背景值
2) background
[英]['bækɡraʊnd] [美]['bæk'graund]
背景值
1.
Usually there is a big error between the actual and the noise background value.
在工业企业厂界噪声实际监测中,对于差值小于3和不为整数时按照GB/T12349-90《工业企业厂界噪声测量方法》进行噪声背景值修正,常会与实际值产生较大误差。
2.
The geographic differential characteristics of the background of lead in soil in China has been studied based on the analysis of lead in soil of various cities.
本文通过对我国城市地区土壤铅背景值的分析，研究了我国土壤铅背景值的地理分异特征，并对其成因进行了探
3.
The contents of 17 nutritive elements,such as P,S,K,were measured using the ICPAES for 422 samples of soil collected in 0—35 cm surface layer in 72 counties or sections,Sichuan to study the characters of the background of nutrition elements.
采用单道扫描等离子发射光谱仪(ICP-AES)对四川茶区72个产茶县422个取样点0—35 cm土层中P、S、K等17种营养元素含量进行测定,分析了该地区茶园土壤的无机营养元素背景值特征。
3) background value
背景值
1.
Oil-gas abnormal identification under the condition of high total hydrocarbon background value;
高全烃背景值下油气异常显示识别
2.
Research on precipitation background value and definition of acid rain;
降水背景值与酸雨定义研究
3.
Application of Cs-137 to monitoring background value of soil and water loss in Zhejiang;
Cs-137在浙江省水土流失背景值监测中的应用
4) background values
背景值
1.
The background values of those elements were determined through the (proper) process of mathematical statistics.
分析了黄海和东海陆架浅海区域表层沉积物中有机碳、硫化物、油类、Cu、Zn、Pb、Cd、Hg、Cr、As、总氮、总磷的含量,通过对数据进行适当的数理统计处理,计算出了黄海和东海陆架区各化学要素的背景值。
2.
Background values of some trace elements of some from our country.
本文讨论了有关:1)痕量元素地球化学背景值;2)痕量元素地球化学表征;及3)我国某些地区若干痕量元素的背景值。
3.
in this paper,the background values of fourteen chemical elemets in oranges produced in Sichuan province and the elements contents in rind, pulp and seeds of the oranges are reported.
本文报导四川产广柑中１４种化学元素背景值。
5) 137 Cs reference inventory
137Cs背景值
1.
Therefore the value of 137 Cs reference inventory of the Gonghe Basin is calculated to be ( 2 691.
通过对高寒草原背景值样点(RS7)的分析,将共和盆地的137Cs背景值含量确定为(2691。
6) single-valued context
单值背景
补充资料：相对Rf值
分子式：
CAS号：
性质：又称相对比移值。待测组分比移值与参比物比移值之比称为相对比移值。
CAS号：
性质：又称相对比移值。待测组分比移值与参比物比移值之比称为相对比移值。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条