变体的

Deformation greatly promoted carbonitride isothermal precipitation and made C-curve shift leftwards. The position and shape of C-curve depended on the content of Nb and N to a great extent, C-curve shifted leftwards a little when N content increased and its nose temperature was raised with Nb content increased. 3 when cooling rate increased, start temperature and finish temperature of continuous cooling precipitation decreased, full precipitation became difficult to take place, the volume fraction of carbonitride precipitation decreased, molar fraction of Nb and C dissolved in austenite increased, and the precipitation grain was further refined. Deformation shorten precipitation start time during continuous cooling, raised precipitation start temperature, accelerated precipitation kinetics of carbonitrides.

计算表明：1在Fe—Nb—C系统中，随着温度的降低，析出相的平衡体积分数增加，溶解在奥氏体中的Nb、C的摩尔分数降低，析出相中C和Nb的原子分数的比值v增加；2变形大大促进了碳氮化物的等温析出，使C曲线左移，Nb和N的含量与C曲线的位置和形状有一定的关系，N含量的增加，使C曲线略有左移，而Nb的含量的增加使得C曲线的鼻子区上移；3随着冷却速率的增大，连续冷却析出的开始温度和结束温度均有所降低，并且析出变得越来越不充分，析出相体积分数明显减小，溶解在奥氏体中Nb和C的摩尔分数增大，析出相粒子被明显细化，变形大大缩短了CCP过程碳氮化物析出的开始时间，提高了析出的开始温度，促进了析出动力学。

In this text we used the method of volume integral equation base on tensor Green's function to study the forward of 4D transient electromagnetic response.

本文采用基于张量格林函数的体积分方程法进行四维模型瞬变电磁响应的正演研究，文章中首先说明了四维瞬变电磁法模拟的可行性及程序实现，然后分别设计了两个三维异常体模型，采用两种观测方式(激发与接收平行、激发与接收垂直)进行正演模拟计算，并对所得的二次总场的数据进行了分析。

Fromthese facts,It could be deduced that 8 to 14 pairs of chromosomes possessed a certaindegree of hetorology,which was directly groved to be hybrid origin of P.tomentosaaccording to the good chromosome homology and fertility of P.bolleana and thehybrids of P.tomentosa×P.bolleana,it could be further deduced that the original parentsof P.tomentosa involved probably P.bolleana or P.alba.

从终变期、中期I的染色体构型看，有数目不等的联会程度较差的单价体和棒状二价体出现，在后期I，甚至末期I亦可见到含落后染色体分裂相的细胞，由此推断可能有8~14对染色体表现出一定程度的异源性，鉴于新疆杨以及毛白杨与新疆杨杂交产生的杂种毛新杨的染色体同源性较强、育性较好等现象，进一步推断毛白杨起源亲本可能包括新疆杨或银白杨。

A model describing the relationship between recovery stress and temperature is developed based on the modified Clausius-Clapeyron equation. A composite model based on the Tanaka model is used to calculate the thermal expansion strain of composite, and the relationship between the martensitic fraction and temperature. Results show that this relationship is nonlinear, affected by prestrain and the heating-cooling history.

利用Tanaka模型以及在Tanaka模型基础上所建立的复合材料的模型，分析了TiNi合金丝/Al基复合材料的热收缩应变，以及复合材料中TiNi合金丝发生逆相变过程中马氏体分数与温度的关系，结果表明马氏体分数与温度之间的关系并非近似线性，而是随着预应变的不同、加热冷却过程的不同而变化的，在具体的使用时应根据不同的情况具体分析。

Viral vector mainly contain adenovirus, retrovirus,adeno-associated virus and so on, but it has potential danger of safety; it isrepeled by immune system when it is injected to organism for a greatimmunogenicity. An injection with adenovirus vector with highconcentration, it leads to serious inflammatory reaction of liver. Viralvector such as liposome and polycation are commonly used lately. But,liposome and polycation have low specificness and targetness of genetransfer tissue, have lower transfection efficiency and short period ofgene expression, for they can be phagocytized by endothelial system.

许多的载体，病毒载体和非病毒载体以前已广泛应用，病毒载体主要包括腺病毒，逆转录病毒，腺相关病毒等；但病毒载体在安全性方面存在潜在的危险；免疫原性比较强，注射到机体后很快会被机体的免疫系统排斥，当静脉注射高浓度的腺病毒载体会使肝脏发生严重的炎症反应；非病毒载体目前常用的有脂质体及多聚阳离子聚合物；但脂质体和阳离子聚合物介导基因转移缺乏组织的特异性和靶向性，转染效率较低且易被网状内皮系统吞噬，基因表达时间短；因此研制新型的非病毒载体已成为研究的热点，纳米颗粒具有小尺寸效应，表面效应，随着颗粒直径变小，比表面积将会显著增大，故具有很高的化学活性，因而纳米成为了最有应用前景的非病毒载体。

The results show that the alloy undergoes obvious plastic elongation, the specimen fractures into four sections and the diameter changes from 16 mm to 12 mm. The fracture surfaces distribute randomly well developed and partially developed veinal patterns. The deformation behavior of alloy is non-Newtonian flow behavior. About 3% amorphous matrix of extruded specimen transforms crystal, the crystal particles with size of 10-20 mm are precipitated in the amorphous matrix, the thermostability of the extruded specimen was lowered. The failure of the alloy is mainly attributed to non-uniform viscous flow under high strain rate resulting from the hydrostatic extrusion process.

结果表明：非晶合金在高应变速率下产生了明显的塑性变形，直径从16 mm变为12 mm，断裂为4段，且样品断口上随机分布着充分发展与未充分发展的脉纹式切变带，由此可看出非晶合金的变形为非牛顿体变形行为；挤压后的样品约有3％的非晶相发生晶化，在非晶基体上析出10～20 nm的纳米晶粒，导致挤压后非晶合金的热稳定性降低；静液挤压高应变速率变形条件使非晶合金产生非均匀流变，是造成非晶合金断裂的主要原因。

Patients in later series had neither risk factors for osteonecrosis nor osteonecrosis at other extraskeletal sites; instead osteoporosis and significant cardiovascular morbidity/atherosclerosis was found in most of the patients.6,19,21 Other findings suggesting an ischemic etiology in these patients is absent enhancement on MRI of the affected vertebrae,7,15,20 "ischemic bone" noted intraoperatively,14 and vertebral body biopsies demonstrating reactive bone/fibrosis and occasionally osteonecrosis and hyalinized marrow.

以后病例系列中的患者既没有引起骨坏死的因素，在其它地方也没有出现骨坏死，而是骨质疏松症和显著的心血管疾病/动脉粥样硬化发病率[6，19，21]，其他的发现表明，在这些患者受影响的椎体上MRI不会出现增强影[7，15，20]，术中可看到&缺血性的骨块&[14]，椎体活检可看到有活性的骨/纤维化，有时可见骨坏死和玻璃样变[8，11，14，16，17，30，31]。

The results show that B2 phase presents broad fibred shape in the forged rod, and major textures are close to {112}〈111〉and {110}〈111〉; Fibred microstructure in hot-extruded tube becomes fine and fibres have broken, at the same time,{111} orientation of many grains is close to axis direction of tube; Microstructure in cold-rolled tube consists of B2,β-Nb and4Ni2O phases, fibres has heavily broken, which restrains phase transformation during cooling and heating.

结果表明：锻棒中的B2相呈较宽的纤维状，主要的织构组分接近{112}〈111〉和{110}〈111〉；热挤压管纤维组织变细且发生碎化，多数晶粒的{111}取向接近管材的轴向；冷轧管相组成为B2、β-Nb和4Ni2O，纤维组织发生严重碎化，抑制了马氏体相变的进行，{111}〈110〉和{112}〈110〉成为主要的织构组分。

The structure of an improved pin gate ,called twin-gate,was described,and the rheological behavior of polymer melt passing through the gate was studied.

介绍了一种改进的点浇口———孪浇口的结构，讨论了聚合物熔体流经该浇口时的流变性能，在浇口的长度、总截面积以及流量一致的条件下，与常用点浇口相比，孪浇口使熔体温度升高和使熔体粘度降低的程度要大，但压力降增加的幅度也大。

In spring 2004, diseased Maruca vitrata larvae were found in Sesbnia cannabina, a leguminous green manure crop grown all over Taiwan in summer season. The infected larvae became sluggish, pinkish, ceased feeding, body became fragile and ruptured; dead larvae were hanging on the top of plant with prolegs attached to the host plant, that is a typical symptom of nudeopolyherosis.

在2004年的春天，实验室在夏季遍及台湾种植季节的豆科绿肥的田菁里观察到染病的豆荚螟幼虫，染病的幼虫变得呆滞，体色稍呈现粉红色，停止进食，身体变得脆弱易破裂，死亡的幼虫被发现附著在寄主植物的顶端悬挂著，这显示是被杆状病毒感染的徵状。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。