1)  index line
指标线
2)  indicatrix
指标线
3)  Dupin indicatrix
Dupin指标线
1.
Some characteristic of the Dupin indicatrix;
Dupin指标线的若干性质
4)  Dupin index line
杜邦指标线
1.
Proximity structure of curved surface is close ralated to the curved of Dupin index line,therefore,linking the basic theories of curved line with the curved surface,we can make an analysis on nearby shape about the curved surface.
曲面上一点的邻近结构和曲面在一点的杜邦指标线密切相关,因此将二次曲线的一些基本理论与曲面的局部理论联系在一起,可以对曲面在一点附近的形状作一个大致地分析。
5)  Signed Dupin indicatrix
正向杜邦指标线
6)  quasi-Dupin indicatrix
拟杜邦指标线
1.
entring on the rate of normal curvature, a method for analyzing constructions of the surfaces near to planar point by introducing the concepts of even planar points, odd planar points, quasi-asymptotic directions and quasi-Dupin indicatrix, etc.
以曲面在平点的法曲率变化率为中心，通过引进偶平点、奇平点、拟渐近方向、拟杜邦指标线等概念，给出了分析曲面在平点邻近结构的一种方法。
7)  indexes
指标
1.
Assessment indexes of ecosystem health,model and application in arid area;
干旱区生态系统健康评价的指标、模型及应用
2.
Screening on occupational health management comprehensive evaluating indexes;
职业卫生管理综合评价指标的筛选
3.
Screening of Reproductive Health Comprehensive Evaluating Indexes--the First Report on the Study of the Reproductive Health Comprehensive Evaluating Model;
生殖健康综合评价模型的研究——生殖健康综合评价指标的筛选
8)  index
指标
1.
Evaluation method and index system of eco-city development:A case study in Dafeng City of Jiangsu Province,China;
生态市评价指标体系与方法——以江苏大丰市为例
2.
A study on the physical and chemical index of Hengshun aromatic vinegar;
镇江恒顺优质香醋理化指标的分析研究
9)  indicator
指标
1.
Countermeasures of improving drilling technology economic indicator for deep wells in western Sichuan;
提高川西深井钻井技术经济指标对策研究
2.
A Discussion on Indicator Systems of Eco-Province Construction in China;
关于中国生态省建设指标体系的几点意见与建议
3.
A study on the approach of establishing indicator system for assessing sustainable development.;
可持续发展评价指标(体系)及其确定方法的探讨
10)  indicators
指标
1.
Indicators of Social Capital in Health Care Field;
卫生保健领域中社会资本指标探讨
2.
A Study on Indicators and Their Collecting Methods of Information Systems for Non-Communicable Diseases Prevention and Control;
慢性病信息系统的指标及其收集方法的研究
3.
The Research of “New Manufacturing” Industry Evaluation Indicators System;
“新型制造业”产业评价指标体系研究
补充资料：Dupin定理


Dupin定理
Dupin theorem

　　[补注]对于历史，可见【A21，P.398，或[A31，P.361.Dupin定理!l加l护nd长如阳”;八。neoa TeopeM，1 已知三族曲面构成三重正交曲面系(戚爪ho即nals声telnofs哪伪偏)，那么不同曲面族中任两张曲面的交线必是它们中每张的曲率线.例如，共焦二阶有心曲面沿曲率线相交.Ch.D印in最先给出这个定理的证明([l])，故定理以他的名字命名.
　　
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