There are mainly three functions of IF: hedging, speculating and arbitraging.
股指期货主要有三个功能：套期保值，投机和套利。
The thesis divides the introduction, text, concluding remark mainly three parts.
论文主要分为前言、正文、结束语三个部分。
There are mainly three features in our virtual laboratory of the numerical circuit.
我们设计实现的数字电路虚拟实验室主要有三个特点。
There are mainly three different reasons for college students to take work-study program.
主要有三种不同的原因大学生勤工俭学。
There are mainly three kinds of sedimentary minerals: fine sand, sulphates, and chlorides.
新疆罗布泊罗北洼地主要有粉砂、粘土沉积，硫酸盐沉积和氯化物沉积。
There are mainly three limitations in their thinking characteristics :a narrow academic concept;
归纳其思维特征，主要存有三个缺陷：一是学术观念狭隘；
There are mainly three kinds of races in the world: the white race, the black race and the yellow race.
世界上有三个主要的种族：白种人，黑种人和黄种人。
His anthropism ideology involved mainly three fields:human nature, human alienation, and future society.
他的人学思想主要涉及到三个领域：人的本性、人的异化和未来社会。
It was found that the coke precursor was mainly three ring aromatic compounds with a few of aromatic ethers.
实验结果表明：焦炭前身物主要由三环取代芳香化合物组成，并有芳醚类化合物存在。
There are mainly three steps in pupil detection and tracking: face detection, pupil detection and pupil tracking.
瞳孔检测与跟踪可分为三个阶段：人脸检测、瞳孔检测、瞳孔跟踪。
There are mainly three modules in it: the computation and check module, the database module and the drawing module.
系统主要有三大模块：计算与校核模块，数据库模块，绘图模块。
Nowadays there are mainly three methods for data integration, which are Federated Databases, Data Warehouse and Middleware.
目前主要的数据集成技术包括联邦数据库、数据仓库以及中间件三种方式。
There are mainly three evaluation methods: Discounted Cash Flow method, Relative Comparables method and Option Pricing method.
估价方法主要有三种：贴现现金流估计法、相对估计法和期权估计法。
It is clear that the influence has mainly three aspects, hydraulic efficiency, dynamic properties and theoretical delivery lift.
明确了这种影响主要体现在三个方面，即泵的水力效率及其动力性能和理论扬程。
The library's Electronic Reserves services operate and cover mainly three UMUC geographic divisions: United States, Europe and Asia.
资讯图书馆的电子储备主要经营和服务马里兰大学学院的三个区域：美国，欧洲和亚洲。
There are, at present, mainly three modes of immunity of a stain witness, transaction immunity, use and derivative use immunity , and informal immunity.
目前，主要存在三种豁免模式：罪行豁免、证据使用豁免和非正式豁免。
There are mainly three scheduling problems in AS/RS, including optimization of rack zone, crane route scheduling and optimization of load and unload system.
自动化仓储系统中的调度问题主要包括：库位优化问题、堆垛机优化调度问题、输送系统调度问题等。
Literary meaning has mainly three characters in terms of historical changing, from stationary to motive, from unified to disordered, from ideas to language.
文学意义从历史变化角度来看主要表现为三个特征，即从静态到动态、从统一到无序、从意识到语言。
There are mainly three methods in the second system stress analysis of the orthotropic steel deck, P-E method, the equivalent girder beam method and the FEM.
薄壁钢扁平箱梁正交异性板钢桥面系第二体系应力的计算方法主要有P -E法、等效格子梁法和有限元法等。
At present, there are mainly three kinds of methods to analyze the performance of the network: Analytical method, experimental method, and simulation method.
当前对网络性能分析主要有三种方法：分析方法、实验分法、模拟方法。
The datum line and mainly three profile height parameters of surface roughness are briefly introduced and the operation principle and system structure of AFM.
简要介绍了评定表面粗糙度参数的基准线及其主要的两个轮廓高度评定参数，详细阐述了重庆大学研制成功的一种高精度原子力显微镜——AFM。
There are mainly three university capital construction management models, namely, self-management model, co-management model, and deputy construction mechanism.
目前高校基本建设常用的管理模式有三种，即自管模式、共管模式及代建模式。
There are mainly three kinds of coordination between social subsystems: the structure coordination, the function coordination and the coordination of operation way.
社会子系统之间的协调主要有三种形式：结构协调、功能协调和运作方式协调。
There are mainly three theories on principle for attribution in Chinese contract law: strict liability, strict-fault liability and fault liability which is tenable.
在中国合同法违约责任的归责原则问题上主要有三种学说：严格责任原则、二元归责原则、过错责任原则。
On the problem of relationship between teaching and learning, there are mainly three paradigms of research: teaching or learning, teaching and learning, instruction.
教与学的关系问题，主要有三种研究范式，即“教”或“学”的研究范式、“教与学”的研究范式以及“教学”研究范式。
In the auxiliary module, mainly three partial contents are included in the paper: the result show, the interfacial design and the procedure installment packs processing.
在辅助模块中，主要包括三个部分内容：程序结果显示、程序界面设计、程序安装打包处理。
It is proved that this modelling approach has mainly three advantages of flexible data input, time-save running and more capable run output including tables, figures and maps.
这种模拟方法的数据输入灵活，运行速度快，尤其是它可以获得一些以各种图表的形式输出的模拟结果。
The results show that the wear of the roller and scale board includes mainly three coexistent mechanisms: cutting wear, plastic deformation wear and brittle-fracture-peeling wear.
结果表明：显微切削、反复塑变和断裂剥落三种磨损机理并存，其中以反复塑变磨损为主。
There are mainly three key elements in model matching based image tracking method, which are representation of image features, similarity measure and target search method respectively.
基于模板匹配的图像跟踪算法有三个关键环节，分别为图像特征表示、相似度计算和目标搜索算法。
There are mainly three key elements in model matching based image tracking method, which are representation of image features, similarity measure and target search method respectively.
基于模板匹配的图像跟踪算法有三个关键环节，分别为图像特征表示、相似度计算和目标搜索算法。
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