1)  joint spectrum
联立谱
1.
Firstly, the local behavior of the joint spectrum of matrices is investigated, then an algorithm based on Rayeigh quotient theory is proposed, Finally, several perturbation theorems are proved.
首先分析了联立谱的局部性质，然后基于Ｒａｙｌｅｉｇｈ商理论给出一种求解方案，最后研究扰动理论，建立了Ｇｅｒｓｃｈｇｏｒｉｎ圆盘理论、Ｂａｕｅｒ－Ｆｉｋｅ型定理、Ｗｉｅｌａｎｄｔ－Ｈｏｆｆｍａｎ型定理，证明了联立谱的半连续
2)  Simultaneous Equations
联立方程
1.
A Community Satisfaction Model Based on Simultaneous Equations;
基于联立方程的社区满意度模型
2.
We try to research empirically and illustrate the relationship between the environmental and economic performance of firm through building the simultaneous equations and adopting the datas of the European some country and Chinese some region paper industry.
　通过联立方程模型把环境绩效和经济绩效结合在一起,并借鉴意大利、荷兰及我国某地区造纸行业的数据进行了实证研究,发现这种方法可以验证环境绩效与经济绩效之间的关系,研究结果比较支持传统学派的观点,但这并不表明修正学派的观点没有价值,只是因为本文只针对一个特殊的行业造纸业,而且考察的只是企业短期的经济绩效,如果考虑环境污染给社会带来的外部成本,那么结果可能相反。
3.
The article presents a simultaneous determination method for three kinds of water-soluble dyes: acid red, acid brown and acid black by solving simultaneous equations using a UV-VIS spectrophotometer.
介绍了利用解联立方程组的方法,在紫外可见分光光度计上实现了对酸性红、酸性棕和酸性黑的混合染料中三种成分浓度的同时测定。
3)  simultaneous equation
联立方程
1.
Using the method of stepwise regression the regression equation was established to analyze the influence degree of chemical component to hardenability of 40MnBH steel The simultaneous equation of component inter control regulation was deduced by means of probability analysis The percent of pass of hardenability beyond 97 5% was achive
利用逐步回归分析的方法 ,确定了 4 0MnBH钢的淬透性与化学成分之间的回归方程 ,以便分析化学成分对淬透性的影响程度 ,并应用概率论推导出求解成分内控规范的联立方程 ,使淬透性合格概率大于 97 5%。
2.
The methods for determining the reagents whose purity is known and for solving the simultaneous equations of the areas of chromatographic peaks,correction factors and the total amounts of all components are mainly studied mainly.
着重介绍了已知纯度物质的测定法及解峰面积、校正因子和各组分量之和联立方程组测定法。
4)  Economic simultaneous equations
联立模型
1.
Objective Economic simultaneous equations of military hospital logistics were set up to get the measures of enhancing the socializing quality.
目的建立军队医院后勤保障社会化质量控制联立模型,探讨提高军队医院后勤保障社会化质量控制措施。
5)  simultaneous estimation
联立估计
6)  Multivariate approximation
联立逼近
参考词条
补充资料：气相色谱/质谱联用
分子式：
分子量：
CAS号：

性质：一种气相色谱联用技术。既发挥了气相色谱高分离的能力，又发挥了质谱法的高鉴别能力。当一个多组分混合物通过色谱柱分离为各个单一组分，再混同载气经过接口，逐一进入质谱仪的离子源。得到相应的质谱图，便可以对每一组分进行鉴别。从位于离子源出口狭缝处的总离子流检测器检测到离子流信号，经放大后成为色谱图。联用时必须在气相色谱仪和质谱仪之间用分子分离器相连接，以将载气与被测组分分离开来，只让组分分子进入质谱仪，同时起减压作用，使之适应质谱仪高真空要求。其技术特点是：适合于多组分混合物中未知物的定性鉴定；可以判断化合物的分子结构；可以准确测定未知组分的摩尔质量，可以鉴别出部分分离甚至未分离开的色谱峰；易于实现收集、贮存、处理、解释有关信息的计算机化。

说明：补充资料仅用于学习参考，请勿用于其它任何用途。