1) Spectral assignment
谱指认
2) Spectral assignment
光谱指认
3) spectral indices
光谱指标
1.
Besides original spectra(R),several spectral indices were also calculated: first derivative reflectance spectra(FDR),inverse-log spectra(lg(1/R)) and band depth(BD).
本文利用偏最小二乘回归方法,研究了反射率(R)、一阶微分(FDR)、反射率倒数的对数(lg(1/R))和波段深度(BD)等对预测精度的影响,对这几种光谱指标预测土壤重金属含量的能力进行了分析和评价,同时分析了多光谱数据估算土壤重金属元素含量的可行性。
4) Spectral index
光谱指数
1.
Adopting the Friedmann-Robertson-Walker model,we present a new exact solution to Einstein s equation that describes the evolution of the cosmological chaotic inflation model,and calculate the spectral indices ns of the scalar density fluctuation and the gravitational wave spectral index ng.
采用Friedmann-Robertson-Walker模型,提出了一个新的描述宇宙浑沌暴涨模型演化的Einstein场方程解,并计算了标量密度涨落的光谱指数ns和引力波光谱指数ng,得到ns的值很好地符合宇宙背景观测卫星观测到的值。
5) chromatogram fingerprint
色谱指纹
1.
The gas chromatogram fingerprint characteristics of C 9-C 17 branched and cyclic alkane, the light hydrocarbon fingerprint correlation and the light hydrocarbon maturity in the crude show that the hydrocarbon sources of all wells in the Chengbei 30 buried hill reservoir are same.
从油藏地球化学角度出发 ,根据原油中C9～C17支链烷烃和环烷烃的色谱指纹特征、轻烃指纹对比、轻烃成熟度指标 ,对埕北 30潜山油藏的连通性进行了研究。
6) chromatographic fingerprint
色谱指纹
1.
ASP oil Production contribution of the separated layers detected by crude oil chromatographic fingerprint technique;
应用原油色谱指纹技术监测三元复合驱分层产油贡献
2.
Aim at the localization of the technique of gas chromatographic fingerprint,which is difficult of being applied to commingled production of three and more layers oil.
针对气相色谱指纹技术目前还难以被应用到3层及3层以上合采油层的局限,作者提出了一套人工神经网络学习算法,该算法具有非线性、精度高、适用于多层合采的优点。
3.
The assessment of oil connectivity makes up an indispensable part of the field production and field management scheme, in which the oil chromatographic fingerprint technology can play an important role.
油藏连通性评价是油田开发和管理方案中必不可少的研究内容,而原油色谱指纹技术可以发挥重要作用。
参考词条
补充资料：质量标尺指认
分子式：
CAS号：
性质：质谱分析中以质量内标物检查标定仪器质量标尺的过程。
CAS号：
性质：质谱分析中以质量内标物检查标定仪器质量标尺的过程。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。