The structural index can be divided into the system index of resources, the system index of social economy and the system index of environment.

结构指标分为资源系统指标，社会经济系统指标和环境系统指标。功能性指标引入协调度的概念来进行描述，并给出了协调度计算的两种方法。

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The paper also describes the structure of PIC16F873 MCU, the system index, the design scheme of every module hardware and lists a detailed process.

分别描述了PIC16F873微处理器结构、系统指标及各模块硬件设计方案，并给出了详细的程序流程。

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The quality control and criteria for rank evaluation of effect on disinfection in medical units were established by using the comprehensive system index method.

本文采用系统方法概括医疗单位消毒工作整体，制定出医疗单位消毒质量内容全部体系及等级的评价标准进行综合评价。

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They used a system of measurement called the Body Mass Index to define words like obese and overweight.

VOA: special.2009.07.21

The big oil and gas firms account for more than half of the Russian Trading System stock index, which is the reason why the Russian trade is so highly correlated to oil futures.

FORBES: Is a Weak Dollar Good for Russia?

China Real Estate Index System, which compiles the data together with online real-estate brokerage firm SouFun Holdings Ltd.

WSJ: China Housing Market Shows Signs of Warming

According to the China Real Estate Index System, prices of second-hand homes rose 2.81% from February this year.

FORBES: More China Cities To Puncture Holes In Housing Bubble