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In this article, by comparative research of the basic principles, agents, methods and effects of the hot metal pretreatments of desiliconization, dephosphorization and desulphurization, the writer defines that the converter-shaped pretreatment of desiliconization, dephosphorization and desulphurization has become the key pretreatment technique of the hot metal for its fine effect, low cost, and outstanding economic and environmentally friendly advantages.

本文通过对铁水预脱硅、脱磷、脱硫基本原理、预处理剂、预处理方法和处理效果的比较研究，明确了转炉型&三脱&工艺因其效果好，成本低和突出的经济、环保优势成为铁水&三脱&预处理的主流工艺。

The optimal order of hot metal pretreatment is obtained by comparing different powder and order with thermodynamic computation, that is hot metal desulphurization→desiliconization and dephosphorization.

北京科技大学冶金与生态工程学院，北京100083）摘要：通过对不同三脱剂、不同处理顺序的热力学计算比较得出最佳铁水预处理顺序为：预处理脱硫－预处理脱硅、脱磷。

The hot metal pretreatment mode is confirmed as: hot metal － desulphurization by KR in ladle—desiliconization and dephosphorization in converter.

铁水预处理工艺模式确定为：高炉铁水－铁水包 KR 法脱硫－专用转炉脱硅、脱磷。

As to the CVC hot strip mills which spread to the world soon after its boom in the 1980s, this paper analyzes its dissymmetric CVC roll surface curves, and builds dissymmetric rolls elastic deforming model and crown and shape calculation model of CVC hot strip mills.

对八十年代兴起并得到迅速推广的CVC热带钢连轧机，本文对其非对称CVC辊型特点进行了分析，建立了非对称问题的辊系弹性变形模型，并研究了CVC热连轧机板凸度和板形计算模型。

Compared the spacial features for the estival extreme high temperature and the hot days in Shandong Province from 1961 to 1990 with that from 1971 to 2000,it indicates that there is evident regional difference for the Climatic change of it,the hot days in the eastern increased but decreased in the western.

对比分析山东省夏季1961～1990年和1971～2000年前后30年极端最高气温和高温日数的分布和变化，得知山东省夏季高温的气候变化存在明显的地域性差异，东部地区高温有所增多，西部地区明显减少。

The clarified air goes into the drying tower after being heated, and then use two or three fluid nozzle to atomize the liquid into small dripping that will exchage the heating with the hot air to evaporize the water content in the liquid, the water content will be discharged as the hot air comes out, and finally the powder or particle products comes out.

洁净空气加热后进入干燥塔，在塔内热风中用二流体喷嘴将各种料液雾化成微小液滴，与热风进行快速热交换，蒸发掉液料中的水份，并随热风排出，得到粉状或颗粒状产品。

The train crew told us he was freezing, afterwards many crews brought different of kinds of hot food to the carriage behind ours, it cost much to have these free hot food (The food on the Ghan are pricey with a little amount).

火车服务员说他被冻坏了，之后，我看到好几个火车服务员拿著不同的热食到后面的车箱，这一些免费的热食得来真不易（火车上的食物真的是又贵量又少）。

Building-type air cooled cool water and hot water unit is central air-conditioning system using the air as the refrigeration source , the water as the refrigeration agent . As the equipment integrating the refrigeration and hearting generation , the air cooled water and hot waterunit omits the cooling tower and its corresponding tube system , its structure is simple and economizes much installation space , the maintenance and management is very convenient , the utilization is wide .

户式风冷冷热水机组是以空气为冷源，以水为供冷介质的中央空调机组，作为冷热兼用型的一体化设备，户式风冷冷热水机组省却了冷却塔及相应管道系统等许多附件，系统结构简单，安装空间节省，维护管理方便且节约能源，适用广泛。

The model hot shielding material high temperature performance theory forecast and the empirical datum carry on the comparison, finally tallies well, explained the theoretical model is correct, has laid the foundation for the heatproof compound materials hot structure analysis.

典型热防护材料的高温性能的理论预报与实验数据进行比较，结果吻合较好，说明理论模型正确，为防热复合材料热结构分析奠定了基础。

His "taro culture" greatly promoted the study in the middle and latter 20~ century in the aspects of providing viewpoint and research attitude and was a latent force in the development of Japanese hot fields in recent 30 years. Therefore Tuboi Hirofumi is not a failure in the study after the 1970s. His idea influenced the development of folklore study in the past three decades, and the study in the hot fields of urban folklore, environment folklore and triple element system justify the existence of the main thread.

因此从这个角度可以说，在70年代以后的研究中坪井洋文不再是一个败北者的存在，他发出的声音极大影响了近30年日本民俗学的学科发展轨迹，而城市民俗学、环境民俗学、三态理论之热点领域的研究也印证了这条主线的存在。

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