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The paper gives a detailed illuminate on the research of "Fire Test Furnace for Building Elements",the technical measures for temperature controlling and pressure controlling,constraint condition,etc.

介绍了建筑构件耐火试验炉的研制思路、控制温度、压力的技术措施以及为满足构件力学试验所采用的约束条件模拟方法等。

Taking Rong hu bridge project as the background, the paper Studies on the optimization of dead load cable tension, construct system of controlling, effect of non-linear factor, limit bearing capacity of structure and spatial stress of concrete-filled steel tubular tower and the combination of girder, which are based on the hybrid cable-stayed bridge.Asking for the maximal deformation of tower and girder to be minimized and cable permissible stress as constraint conditions, the paper tries to solve the ideal dead load cable tension by combining finite element calculation and optimize analysis.

本文以蓉湖大桥工程为背景，就混合梁斜拉桥的成桥恒载索力优化、施工监控体系、过程非线性因素影响、结构极限承载力、索塔和主梁结合部的空间应力分析等问题开展研究：关于索力的优化，是以斜拉桥索塔和梁的最大变位最小为目标，以拉索容许应力为约束条件，采用有限元计算与优化分析相结合的方法来确定斜拉桥的成桥合理恒载索力。

High content of olefin and butadiene in C 4 feedstock and the oxygen compound in the tail gas of MTBE unit are the main constraint factors of alkylation unit and the production cost of high octane gasoline was increased.

经过研究开发，确定了新的碳四加工联合工艺生产高辛烷值汽油的方案，该联合工艺由碳四选择性加氢，MTBE和烷基化装置三部分组成，并在MTBE装置中采用D0 0 5催化剂以及增设甲醇回收系统压力控制技术。

Based on the above-mentioned characters, this paper analyzes and improves the building method of non-restraint triangulated irregular network and the embedded approach of constraint conditions, provides a kind of computational method which is used to compute the strip mine earthwork calculation based on constrained triangulated irregular network. a experiment system, which auto-complete the update of the strip mine relief map and earthwork calculation with the discrete elevation point, is developed by using the VBA development tool of AutoCAD.

基于上述特点，本文主要分析并改进了无约束三角网建立的方法与约束条件的嵌入方法，研究了基于带约束条件的不规则三角网的露天矿采剥土方量的计算方法，并利用了AutoCAD内嵌的VBA开发工具，实现了一个以离散的高程点为数据，自动完成露天矿地形图更新绘制与土方量计算的实验系统。

The thesis recommended the theory of minimum strain energy, which says the total structural strain energy can be changed by the increase and decrease of constraint number.

本文介绍了通过在结构单元上增加或者减少不作功的不同约束点，可以改变结构单元应变能的大小的应变能极小原理。

For improving the maneuver stability,safety and decreasing the tire wear,the combination of the optimization software,modefrontier and msc.adams,is applied to design the steering mechanism,with bottom angle of steering trapezoid,arm length,kingpins distance and axles distance as design parameters,transmit angle as constraint,minimum error between theoretical and practical steering angle as objective function,and simulated annealing as the optimization algorithm.

为了提高汽车操纵稳定性、安全性及减少轮胎磨损，将数值优化软件modefrontier同机械动力学仿真分析软件m sc.adam s集成，以转向梯形底角、转向臂长度、主销中心距和轴距为设计参数，传动角为约束，以转向时内轮实际转角与理论转角的误差最小为目标函数，采用模拟退火算法对转向机构进行最优化设计。

Working with the energy matching principle, the algebraic method is presented to establish the periodic relative motion condition, that is, the orbit constraint for the formation designing and station keeping.

基于能量匹配原理，提出了一种只需进行代数运算，就可确定编队卫星周期性相对运动条件，即轨道约束的的新方法。

The resulting vertical and horizontal slant angular displacement of bullet in half constraint region was presented during gun-firing, and the influence of rotor rotational speed and barrels clamp cone angle on initial ballistic dispersion were also discussed.

结果表明，半约束期内旋转离心力和身管组半锥夹角导致的科氏力对弹丸起始扰动有影响，同时弹丸偏角将随着身管转速的增加而线性增加，特别是高射速时，弹丸的偏角更大，这些可为转管武器的射击精度研究提供参考。

Spear-headed numerous research projects including enterprise reform, financial restructuring, redefinition of government's role in managing enterprises, rejuvenation of industrial base in Northeast China, policy study on motor industry development, energy policy study, constraint and incentive policy on enterprise management, laws and regulations on state-owned assets, governmental institution restructuring and modification on Company Law, and also participated in formulating and drafting many important policies for central government and was a member of the drafting committee for the Decision of the 3rd Plenary Session of the 14th Central Committee, the 4rd Plenary Session of the 15th Central Committee, the 2rd and 3rd Plenary Session of the 16th Central Committee of CCP.

主持了多项企业改革、经济结构调整、政府职能转变、振兴东北老工业基地、汽车产业发展政策、国家能源政策、企业经营者激励约束机制与股票期权制度、国有资产管理法规、政府机构改革、《公司法》修改等方面的重大课题研究工作，参与了中央和国务院许多重大政策和重要文件的制订和起草工作，是十四届三中全会、十五届四中全会、十六届二中全会、三中全会《决定》起草人之一。

There are several methods about transverse distribution .By research, it is suitable to calculate the ribbed slab bridge of sparse-packed with the method of eccentric compression consider constraint torsion.

横向分布的计算方法有多种，通过比较发现考虑约束扭转的偏心受压法计算本文中的稀排肋板式结构是适合的。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。