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Furthermore, the paper introduces the developing method and the main functions of the simulation system for practice of small refrigerating machine, which is based on Web.

此外,本文还介绍了基于Web的小型制冷装置部件虚拟实践模拟系统的开发方法和系统的主要功能。

To broaden desert shrub new utilizing fields, accelerate desert shrub developing to the direction of high added-value and high benefit, the paper studied on the liquefaction of Salix, Caragana and Poplar in the presence of Phenol under sulfuric acid catalysis. The optimum processing parameters for Salix, Caragana and Poplar liquefaction and resinification were investigated. The effect of molar ratio of formaldehyde to liquefied products and NaOH to liquefied products on the character and glue strength of liquefied products resin was studied.

摘 要:为了开辟沙生灌木资源新的应用领域,促使沙生灌木资源的利用向高附加值、高效益的方向发展,本文以苯酚作液化剂,以稀硫酸作催化剂对沙柳、柠条和杨木进行液化实验,分析了反应温度、液比、催化剂用量及液化时间对液化反应的影响;并研究了沙柳、柠条和杨木液化产物树脂化合成工艺和配方,分析了不同的甲醛与液化产物摩尔比以及氢氧化钠与液化产物摩尔比对沙柳、柠条和杨木液化产物树脂的各项性能的影响。

This paper summarized the development of metallocene catalyst and single-site center technology, and introduced the developing trends of polyethylene producing processes including bimodal PE production technology, responser new disposition technology and condensed and super-condensed technology.

概述了茂金属催化剂和单活性中心技术的发展,介绍了聚乙烯生产技术新的发展动向,如双峰PE生产技术、反应器新配置技术、冷凝态和超冷凝态技术。

This paper analyses the developing status of existing fault current limiting technology. A topology scheme of resumable and hybrid fault current limiter based on positive temperature coefficient thermistor is proposed.

分析了现有短路电流限制技术的发展现状,提出一种基于正温度系数(positive temperature coefficient,PTC)热敏电阻的可恢复型混合式短路限流装置的拓扑结构。

Researching and developing riderless bicycle is a important work offering scientific and actual significance . Internal and overseas research actuality was summarized in this paper , existent problems was analyzed , and then primary development direction of riderless bicycles was presented .

而自行车机器人实际上就是一种无人驾驶的自行车,因此,自行车机器人的控制问题相当困难,如不能采用连续或可微的纯状态反馈实现系统的渐近稳定,不能采用非线性变换实现整体线性化等。

This paper discussed the distribution of forest resources in the tropics, their main types, main characteristics and present management status, and proposed twelve management modes, and these modes include establishing nature conservation region, eco-public-benefit forest management, extravisme, limiting logging and regeneration after logging, logging three and remaining seven method, tropical shelterwood system, sylviculture douce, whole cultivation method, specialized cultivation method, strip clearcutting method, developing tree species of lacking noted and nature regeneration, closing hillsides to facilitate afforestation.

本文对世界热带地区的森林资源分布、基本类型、主要特征、世界次生林的经营现状和主要经营方式讨论。这些经营方式包括建立自然保护区、生态公益林经营、&采掘主义&、限制采伐和伐后更新、&砍三留七&法、&扶持&式育林法、&抑制&式育林法、整体培育法、专门培育法、带状皆伐法、开发欠知名树种、自然更新和封山育林。

This paper begins with the introduction of the concept of logistics, and then analyzes the developing trend of modern logistics and its constructing techniques. The advanced logistics information systems developed both in China and outside China are examined sketchily as well. The emphasis is, however, put upon the analysis of the solution and the objectives of the design, the techniques of general and detailed design of the system.

本论文在介绍物流的概念,现代物流的发展方向、构建技术以及国内外先进的物流信息系统的功能特性的基础上,重点论述物流系统的设计理念、系统软硬件的整体设计、详细设计以及实现技术。

The third and fourth chaptersfocused on the collection, sortation and induction of materials about the modern serviceindustry of Tianjin. By the analysis and compare in the history and facts aspects, we point outthe features and lacks to develop modern service industry, and analyze the policy environmentand advantages. This paper gaves some suggests about to promote the developing of modernservice industry for Tianjin.

第三、四章注重对天津市现代服务业相关资料进行搜集、整理和归纳,通过对其发展历史、现状进行纵向分析和横向比较,指出现代服务业发展的差距和不足,并分析政策环境和优势条件,提出促进天津市现代服务业发展的政策建议。

Developing part-nerships with urban poor organizations to find mutually acceptable and affordable solutions to improving conditions in "slums", as described in Sundar Burra's paper, is likely to contribute far more to Mumbai's interna-tional success.

发展和城市贫民组织之间的关系,从而寻求相互可以接受和力所能及的方法,来改善&贫民窟&的情况,正如Sundar Burra文章中所描述的,孟买在国际上的成功可能还差得很远。

In this paper, the similarity between the developing history of supramolecular chemistry and of coordination chemistry were discussed briefly.

简短地讨论了超分子化学的发展历史与配位化学发展历史的某些相似性。

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On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面,更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值,分为几个相等的区间作为横轴,并将各区间内所测定值依所出现的次数累积而成的面积,用柱子排起来的图形,也叫做柱状图。

You rap, you know we are not so good at rapping, huh?

你唱吧,你也知道我们并不那么擅长说唱,对吧?