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The extrusion stress can be predicted exactly and the geometric size of the die and the mandril can also be designed rationally with the theory of upper limit calculation.

本文提出一种有芯棒精密缩径开式挤压工艺，并应用上限理论计算方法可准确预示挤压力，合理设计出凹模及芯棒几何尺寸。

Enlightened by compensation model of wireless QoS scheduling algorithms and ideas that weights can be modified during scheduling, compensation model of CFQ can be implemented by deflating and magnifying wights with certain proportions.

与WFQ等不同的是，CFQ算法的的虚拟时间标签由于业务流的权值动态改变而将产生相应的缩放变化，当分组离开队列，需要立即更新业务流的HOL分组虚拟时间戳并重新排序以选择下一个调度的分组。

There are many problems in the carling forming and unloading processes such as expand and shrink of U section wall, the torsion of U section and the warp of carling head.

针对纵梁冲压成形及卸载后发生的U型截面侧壁的外扩、内缩、扭转以及纵向端头翘曲等问题，首先分析了纵梁的成形及回弹变形机理，利用仿真分析软件KMAS进行了数值模拟并采用半解析、半实验方法研究了纵梁底面翘曲，找出模具结构的最佳方案。

There are many problems in the carling forming and unloading processes such as expand and shrink of U section wall, the torsion of U section and the warp of carling head. These problems are concerned by the carling factories and do not solved for a long time. The mechanism of the carling forming and spring back is analyzed. The carling forming and spring back processes are simulated by KMAS software. The warp of carling underside is researched by half analytic and half experiment method and the best scheme is found by this method.

针对纵梁冲压成形及卸载后发生的U型截面侧壁的外扩、内缩、扭转以及纵向端头翘曲等问题，首先分析了纵梁的成形及回弹变形机理，利用仿真分析软件KMAS进行了数值模拟并采用半解析、半实验方法研究了纵梁底面翘曲，找出模具结构的最佳方案。

Tris-(1-aziridinyl)- phosphine oxide and 2-[bis-(2-chloroethyl)-amino]-tetrahydro-1, 3, 2-oxazaphospholidine-2-oxide(Ⅲ, B-518) possess inhibitory action against a variety of animal tumours and have been used clinically. Recently, bis-(1-aziridinyl)-phosphinyl carbamic acid ethyl ester(Ⅱ, AB-100) was found to possess significant activity with low toxicity on experimental animal tumours.

双(2-氯乙基)氨基磷酰二氯与乙烯亚胺在脱水苯或对氧六环中并在三乙胺的存在下进行缩合，生成N，N-双(2-氯乙基)-N′，N-二乙烯基-磷酰胺；与双巯基或双氨基化合物作用，则生成相应的环状磷酰胺、磷酰胺酯以及磷酰胺硫代酯氮芥类化合物。

Today the company owns the most advanced "Picanol" brand denim looms dedicated 260 Units, 320 Units Size rapier, United pulp dyeing machine 2 Units, Singeing Units 2 pre-shrinking machines, high-speed intelligent warper 6 Units and facilities. June 2005 the company acquired more than 130 acres of land, built and put into use more than 20,000 square meters factory buildings, office buildings, collective single apartments, restaurants and other office Living facilities.

如今公司拥有国内最先进的&必佳乐&牌牛仔布专用织机260台，大小剑杆织机320台、浆染联合机2台、烧毛预缩机2台、高速智能整经机6台及配套设施。2005年6月公司又购置土地130余亩，建成并投入使用厂房20000多平方米，办公楼、集体单身公寓、餐厅等办公生活设施一应俱全。

Combined with practical engineering,the author introduces the selection of raw materials and concrete mix proportion,construction condition and crack distribution of the engineering,analyzes the causes of temperature shrinkage cracks in the concrete of pier,and proposes measures to control them,in order to ensure the quality of railroad bridge engineering.

结合工程概况，对该工程的原材料及混凝土配合比选用、施工情况及裂纹分布情况进行了介绍，分析了墩身混凝土的温缩裂缝产生原因，并提出了控制裂缝的对策，以保证铁路桥梁工程的质量。

In the paper, the discussion is based on the vowelharmony of the retracted tongue root in Orochonlanguage and the Optimality theory. It is proposed thatthe transparency in the system of retracted tongue rootneuter vowel harmony can be explained with the mutualrelationship between the faithful restrained conditionsand the simultaneous restrained conditions of markedfeatures based on the relationship of sound mechanism.

论文关键词，论文来源民族语文，论文单位京，点击次数 0，论文页数 37～48页2002年2002月论文网 http：//www.lw23.com/paper_61394821/本文以鄂伦春语舌根后缩元音和谐的基本事实为依据，提出了以语音机制之间相互关系为基础的标记类特征同现制约条件，并以这个制约条件和忠实类制约条件之间的交互关系解释RTR 和谐系统中性元音的可透性。

The standard flow channel valve can be used: the United States NIBCO T-580-70 Valve; S-580-70 Valve (2), available to full-flow channel valve indented Path: The United States NIBCO T-585-70 Valve; S-585-70 Valve 2, check valve: Path DN65 valve should be used the following Swing Y-shaped structure, and in accordance with the United States valves and pipe fittings Manufacturers Standardization Society MSS-SP80 standards of manufacture, working pressure 125 lbs class, in line with the United States Society for Testing and Materials Standard Bronze ASTMB62 valve, configuration, Teflon flap valve seat, or seat configuration flexibility of the spring-driven lift-type check valve.

可采用的标准流道阀门：美国尼伯科T-580-70球阀；S-580-70球阀（2）、可采用的不缩径全流道阀门：美国尼伯科T-585-70球阀；S-585-70球阀 2、止回阀：通径DN65以下的止回阀应该采用Y形旋启式结构，并按照美国阀门和管件制造商标准化协会MSS-SP80标准制造，工作压力125磅级，符合美国材料试验协会ASTMB62标准的青铜阀体，配置聚四氟乙烯阀座阀瓣，或配置弹性阀座的弹簧驱动升降式止回阀。

In the present dissertation, a surfactant-templated mesoporous silica molecular sieve with high pore volume, high porosity and narrow bimodal mesopore size distribution was synthesized for the first time in a reaction system, which was used usually in the synthesis of mesoporous MCM-41 molecular sieves, by a judiciously controlled two-phase sol-gel processing under basic conditions.

在本论文中，我们通过对一个通常用于制备介孔MCM-41分子筛的反应体系中正硅酸乙酯水解与缩合反应相对速率的精确调控，首次在弱碱性体系中合成了一种具有高孔隙率、大孔体积和双介孔孔分布特征的新型二氧化硅分子筛材料，简记为BMS，并对BMS二氧化硅分子筛中双介孔结构形成的原因及各种可能对其结构和性质产生影响的合成因素如Ammonia／silica摩尔比、组分浓度的变化、表面活性剂烷基链长度的调节、辅助有机物均三甲苯的引入、催化剂的结构和性质、溶剂和助溶剂的极性和用量、老化和干燥条件的变化及合成后水热处理等，利用不同的测试手段如XRD，SEM，TEM，〓Si MAS NMR，TG-DTA，N〓吸附测试等进行了系统的表征研究。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。