特征指标

Objective To establish the method of fingerprint analysis for volatile oil from Cinnamomum cassia Presl and to determine the main characteristic components.

目的 建立肉桂挥发油GC分析色谱条件，初步拟定肉桂挥发油特征指纹图谱指标成分群。

Methods: Adopting improved celloidin embedding technique, 40 adult thoracolumbar spinal specimens were made serial coronal, sagittal and transverse sections with the thickness of 0.25mm. The morphologic characteristics and adjacent relations of structures concerning with central and lateral vertebral canal and intervertebral foramina were surveyed and measured.

40例成人尸体胸腰段脊柱标本经改良火棉胶技术包埋后分别在冠状、矢状和水平位行250μm厚的连续切片，观察胸腰段中央椎管、侧椎管及椎间管内各结构的形态特征和毗邻关系，并同时测量相关结构指标。

To reflect the power of different alliances a characteristic function and a power index are introduced.

在特征函数的基础上，根据铁路运作生产的特点，引入势指标的概念以反映不同联盟的"势力"。

This paper has analyzed the innovation enterprises characteristic,and constructed evaluation index system by limiting the innovation enterprises connotation.

通过界定创新型企业的内涵，分析了创新型企业的特征，构建了创新型企业的评价指标体系，提出了基于BP神经网络的创新型企业评价方法。

GC-MS can be used to control the quality of processed Rhizoma Kaempferiae with characteristic constituents as the index.

结论FTIR能准确地鉴别山柰，GC-MS法能以特征成分为指标精确地控制山柰饮片的质量。

In view of practical problem during Sulige gas field development, this paper complete follow study content. Study material balance theory of two district compound gas reservoir. Carry out stress sensitivity experiment on matrix rock and labor created fracture core from Sulige gas field with America Core Company high pressure high temperature flow experimental instrument to study stress sensitivity change rule of different permeability matrix rock and created fracture core at the condition of time and again switch on and off well and different drawdown pressure. Carry out depletion experiment on matrix rock of different permeability serial combination with different kinds of allocation, using double core clamper serial connected experimental apparatus, to study gas well production performance of bi-zonal compound low permeability reservoir during low pressure production stage. At the basis of experimental study, establish single well simulation model to analyze development index infection caused by stress sensibility and production performance infection rule caused by inner formation and outer formation of bi-zonal compound gas reservoir permeability variation while considering stress sensitivity.

针对苏里格低渗气田开发中存在的实际问题，完成以下研究内容；研究了两区复合气藏物质平衡原理；利用美国岩芯公司高温高压流动实验仪，对取自苏里格气田基质岩芯和人工造缝岩芯进行应力敏感实验，研究不同渗透率基质岩芯和造缝岩芯在多次开关井和不同生产压差条件下的应力敏感变化规律；采用双岩芯夹持器串联实验装置，对不同渗透率串联组合的基质岩芯进行各种配产条件下的衰竭实验，研究两区复合的低渗储层气井在低压生产阶段的生产动态特征；在实验研究的基础上，建立单井模拟模型分析储层应力敏感性和非均质性对开发指标的影响，研究考虑应力敏感时两区复合气藏储层中内区和外区渗透率变化对开发动态的影响规律。

Based on these, a new method for designing robust pole assignment control systems is established with characteristic coefficient sensitivity as its cost functional.

在此基础上，提出了一种以加权特征系数灵敏度为性能指标，结构化小参数摄动下的鲁棒极点配置控制系统的设计方法。

And these 6 influential factors were analyzed with the experiment by means of range, variance and regression analysis. During the analysis, the evaluation criteria were the acceleration of rolling rock movement and the restitution coefficient of collision velocity between rolling rock and slope surface.

在试验基础上，采用极差、方差和回归分析等手段，以滚石运动的加速度和滚石与坡面碰撞速度恢复系数作为评价指标，对影响滚石在斜坡上运动特征的6个因素进行分析。

In this study, parting coefficient is used as an index for selecting proper image features.

在本研究中，分隔系数被用作选择合适的图像特征的评价指标。

Based on this, this thesis firstly explores the meaning, characteristics and the theoretical basis of the merit system, and brings forward the design requirement of the modern merit systems index combined with the modern administration system.

基于此，本文首先从对公务员绩效考核制度的内涵、特征及其理论基础的考察入手，结合现代行政管理体制，提出了现代公务员绩效考核指标的设计要求。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐