查询词典 optional selection

This paper presents the portfolio selection problem of two-attribute money and creates a model of portfolio selection based on two-attribute money, which can both contain the existing portfolio models and overcome the above-mentioned deficiencies. A series of new concepts is put forward, such as, holding wealth, obtainable wealth, short-term utility function, short-term expectation-variance utility function, state-expectation-variance utility function, short-term expectation-variance utility curve, long-term expectation-variance utility curve, margin utility contribution force, additional contribution force, profit-risk exchange rate and optimal portfolio expansion curve; The state-expectation-variance analytical method is developed from the expectation-variance analytical method; A set of systematic theories concerning two-attribute portfolio selection is thus established.

本文提出了两属性货币的证券组合选择问题；创建了既能包含现有证券组合选择模型又能克服上述两点不足的两属性证券组合选择模型；提出了持有财富、可获财富，短期效用函数，短期期望—方差效用函数、状态—期望—方差效用函数，短期期望—方差效用曲线、长期期望—方差效用曲线，边际效用贡献力，附加贡献力，收益—风险替换率，最优证券组合扩展线等一系列新概念；把期望—方差分析方法发展成状态—期望—方差分析方法；建立了两属性证券组合选择模型的一套系统的理论。

Including: to enclose to protect the calculation and selection of scheme of hot load of the structure heating ,selection ,waterpower calculation and heating room coil design and selection of appendix of basement heating scheme and economically analyses and CAD drawing .

设计主要包括：设计方案的经济性分析和择优确定；设计概预算；采暖、供热外网热负荷的计算、给排水负荷的计算；采暖、给排水、热网的水力计算；热力站的设计；以及管线、设备的布置，附件的选择，CAD制图等内容。

While among genetic indexes of samaras, obvious differences existed in repetition, heredity variance, selection difference, selection response, selection intensity and heredity gain.

对高产胶优良无性系各遗传参数进行分析表明，杜仲果实各形态性状和生长结果性状均具有较高的重复力。

In this paper,detailed steps and key points in designning of light-gauge steel framing will be introduced, including column spacing selection of portal frame, structure system layout, selection of load value, material selection, design of portal frame structure and its members, and design of brace, column brace and purline .

结合多年设计经验，总结了轻型钢结构厂房的设计要点、思路和步骤，介绍了门式刚架柱网尺寸选择及结构体系布置、荷载取值、结构和构件设计、材质选择、柱间支撑、檩条、墙梁、拉条等设计要点，提出一些在设计中应注意的问题和建议，供同行参考

The construction of geochemical observatory has finished proof, well selection, site selection, term selection and settlement of instruments, and put into operation.

现腾冲火山地化综合观测站经科学论证、选井、选址、选项，已完成基建及仪器安装等建设，基本测项已投入正常观测。

The four models were analyzed and normalized. We studied the procedure and method of building forest fire model base. Model base was build by object-oriented method based on category of model. Forest fire spreading models algorithm were implemented. We designed model dictionary base, model file base, and model knowledge base. Model base administration and maintenance functions were developed and implemented model file management, parameter management and knowledge management. The problems of interface between of model base and database were solved by means of model data control files. Model base ensured the availability of supporting for forest fire model suitability selection technology and forest fire model self-adapting updating technology.(3) Based on BP artificial neural network, we designed a frame construction of forest fire model selection of suitability. Forest fire model selection knowledge was produced through BP artificial neural network.

2建立了林火模型库建设的林火蔓延模型评价标准，根据模型评价标准和试验区实际情况，在42个林火蔓延模型中选择了目前最具有影响力和最具有典型代表性的Rothermel模型、王正非模型、加拿大模型和澳大利亚模型进行了解析和归一化处理；对林火模型库的建库过程和方法进行了研究，在林火模型分类基础上，采用面向对象的模型库表示方法建立了林火模型库；实现了林火蔓延模型算法，设计了模型字典库、模型文件库和模型知识库；开发了模型库管理与维护功能，实现了模型的文件管理、参数管理和知识管理；通过模型数据管理文件解决了模型库与数据库之间接口问题；实现了林火模型库对林火模型适宜性选择和林火模型自适应修正技术的有效支持。

Using the method integrating geoscientific research with bit selection research, analysis is made on the stratigraphic-lithologic characteristics of all geological intervals in the area, the effect on bit selection and how to increase drilling speed is made clear. Based on the above, the conceptual profiled design for bit selection and drilling methods of all geological intervals is proposed on the basis of the stratigraphic-lithologic characteristics.

应用地学研究与钻头选型研究相结合的方法，对该地区各地质层段的地层产状与岩性特征进行了分析，获取了钻头选型对提高钻井速度影响的认知，提出了基于地层产状与岩性特征的各地质层段钻头选型及其钻井方式的轮廓化概念设计。

The world of game will be comprised by bit of many course connective, you are OK and optional mobile on old map, the enemy difficulty of different area also can follow the player's selection and have different.

游戏的世界将会由多条路线连接的小点组成，你可以随意的在大地图上移动，不同地区的敌人难度也会随玩家的选择而有不同。

Expand questionnaire, data, result, analysis, interpretation, make/draw the conclusion VACATION Scenery,(make Australian book a the room 婚介所 matrimonial agency 婚外恋 extramarital love domestic demand and consumption 雅思听力必备分类词汇 reservation), dollars, Pound, currency Canadian dollars, RENTING A HOUSE land/lord, surroundings(rural suburb, downtown,rooms(single room, double bedroom, bathroom, kitchen, balcony)facilities(heater, radiators, carpet, microwave refrigerator, telephone, stove, oven), COURSE SELECTION courses(mathematic, literature, psychology, philosophy, primary, secondary, enrolment, credits, history, physics, anthropology), intermediate, advanced, course number, hour, land/lady, areas, Japanese Yen, country, and language (French, Cantonese, Mandarin, German, Japanese, Arabic), names of people and places, credit card Russian, Italian, Portuguese,婚纱摄影 bride photo 黑心棉 shoddy cotton 机器阅卷 machine scoring 即开型奖券 scratch-open ticket/lottery 集中精力把经济建设搞上去 go all out for economic development 价格听证会 public price hearings 甲 A 球队 Division A Soccer Team 家政服务 household management service 加强舆论监督 ensure the correct orientation is maintained in public opinion 假帐 accounting fraud 叫板 challenge; pick a quarrel 矫情 use lame arguments 渐进式台独 gradual Taiwan independence 借调 temporarily transfer prices, bed facilities(bed linen, spread, pillow, blanket), information lease, of mattress, sheet, personal boarders, utilities, level of courseselementary, entrance hall(lobby, porch, unfurnished/furnished, apartment/flat, blackout GEOGRAPHIC SITUATION City names, population, full-time/part-time student, required/compulsory courses, elective/selective/optional advantages/disadvantages (pros/cons, merits/ demerits, strong/ weak points), climate and weather, dialect, language whether accent, ORIENTATION Surroundings, history of school, teachers and faculty, buildings, their functions and places, like it or not, main attraction (miss, long for, love, like, look forward to, enjoy RESEARCH Hypothesis, investigation, survey, interview, COMPUTER LAB Lab rules, printer, copier, fax machine, modem, Macintosh, network, access to the net 第 25 页(共 76 页)雅思词汇 LIBRARY Due, overdue and pay a fine, information desk, call slip, library card, renew, catalogue (under titles/authors/subjects), periodical, current / back issues, librarian and reader, open/closed shelves, reference books, stacks

5，感官记忆：记单词时不要只用一种感官，尽可能地用多个感官，耳听嘴读手写眼看心记等 6，软件记忆：有电脑的可利用电脑软件进行记单词，如开心背单词，开天辟地背单词，我爱背单词等 7，构词记忆：利用构词法，通过分析词根，前缀，后缀，派生和合成等记忆单词 8，图表记忆：利用形象的图表进行记忆，它的优点是意形物直观的结合到一起，你可以找一本英语图解字典作为参考一起进行单词记忆扩大了词义 14，词典记忆：背字典这种方法是一种强行记忆的方法，它的缺点是容易忘记，只是孤立记住单词的意义，可以作为一种短时间的强化手段 15，复习记忆：单词记住了很快会忘掉，每隔一段时间要进行复习巩固所学单词 16，商标记忆：通过看到的商标和广告随时随地进行单词记 17，比较记忆： 1英汉比较如 mama cigar ， beer bar fee 等 2，单复数的比较如 good goods spirits spirit wood woods 3，同音词的比较如 center write eye 第 26 页(共 76 页)雅思词汇 4，词的阴阳性的比较如 actor actress host hostess 18，理解记忆：通过正确理解单词的本义，引申义和比喻义，等如 second 是秒，它来源于古代的六分法分秒，它是二次划分。

The exemplary ergonomics are classic Audi though, as is the liberal usage of fine materials such as aluminium, exclusive woods, chrome, leather and Alcantara, as well as a large selection of optional design packages.

人体工程学的典范，虽然是典型的奥迪，如所引起的优良材料，如铝自由使用，专用木材，铬，皮革和Alcantara，以及设计的可选包可供选择。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？