刚性

Because of the"phototactic effect",the expenditure of the advanced technology wars is much greater thanthe wars in the past and presents the tendency to grow speedily,which forms a sharp con-tradiction with the rigid restraint of the resource supply.

高技术战争由于&趋光效应&的作用，其耗费比以往战争要大得多，并且呈现急剧增长之趋势，与刚性资源供给约束形成尖锐矛盾。

That is one of the best results in asymmetric catalyzed pinacol coupling reaction, which indicates that the tetradentate chiral Schiff-bases with C〓 symmetry and rigid structure may be developed into practical applications.

这说明，具有C〓对称性且其核心结构具有刚性的四齿Schiff--Base是最有希望获得有实用价值的新的手性化合物。

The edgewise technique was used to align and level the upper and lower arches gradually and upright the lower incisors. Then, modified LeFort Ⅰ osteotomy was operated with 4 cases pterygomaxillary disjunction and the other 2 cases not. The maxillas were not moved during the operation and sutured mucoperiosteum at the same place. After 3-5 days latency period, elastic distraction about 700g/side and increasing to 1400g/side gradually, was started with two cases which the maxillas were not cut off totally.

术后经过3—5天的延迟期即开始牵引，2例行不完全截开术者，采用弹性牵引，力量从700g／侧逐渐增加至1500g／侧；4例行完全骨截开术者，首先采用刚性牵引和口外牵引钩，每天缩短牵引钢丝1mm，2例直接达到矫治要求，其余2例达到浅覆盖后，截去口外牵引钩，换弹性牵引和口内牵引钩继续前牵上颌骨。

Macrocycle with two pyridyl unitsZ-protected groups in the di-ester formed from esterification of Z-Glycine with 2,6-bishydroxymethyl pyridine was removed and thenconverted into Ts-protected group.

本论文以天然氨基酸为手性源，以芳杂环为大环分子的刚性因素，研究它们的环合反应和分子结构，为此设计了下列三种结构类型的大环分子：一。

Tgs are about 573 K for copolyimides based on pyromellitic dianhydride and 533—543 K for those based on 3,3′,4,4′-diphenylethertetra-carboxylic dianhydride and are almost independent of the chromophore loading level.

以刚性相对较大的均苯四甲酸二酐为二酐单体的PPI 的Tg在573 K左右；以二苯醚-3，3′，4，4′-四甲酸二酐为单体的OPI 的Tg在533～543 K之间，且基本与染料发色团含量无关。

The banjo-type axle housing 10 comprises an enlarged central, or banjo, portion 12 defining a hollow interior adapted for housing a differential assembly therein, and a pair of sleeve-like axle beam portions 14R and 14L outwardly laterally extending from opposite sides of the center portion 12 for housing axle shafts. The central portion 12 has a front carrier opening 16 formed therethrough on its forwardly facing side, and a rear opening 18 formed therethrough on its rearwardly facing side.

桥壳banjo-type组成的中央，放大10分12个定义斑鸠，或是一个空洞的室内适合住房差动总成，和一双sleeve-like轴部分梁横向延伸14L 14R外，从两端的中心部分12住房刚性车轴。12有一个中央部分开放前载体上16形成籍由氧化还原，使得面对18形成一个开放其rearwardly面对籍由氧化还原。

In the axes section, we can find the restring force could transmiting.

通过对柱纵截面的应力分析，发现在柱体纵向约束力可以沿刚性铰方向进行传递。

A test of wind pressure distribution on the New Control Tower of Beijing Airport has carried out.The wind pressure coefficients of mean,maximum and minimum values,as well as wind pressures of 50 and 100 year retune period with both 10 minute and 3 second time averages have been obtained and the top 8 values have been presented.

对某机场塔台模型，在模拟的大气边界层风场中进行了刚性模型测压试验，得到了这一结构的平均风压系数、最大和最小风压系数分布以及对应于 5 0年和 1 0 0年重现期的 3s及1 0min平均的风压值。

In order to modify the dense of the hydrophilic groups of the superabsorbents, as well as reutilize wast polymer , a rigid and hydrophobic polystyrene chain have been introduced into the superabsorbent, and novel superabsorbent nanocomposites based on partially neutralized acrylic acid, waste polystyrene foam and sodium type montmorillonite powder have been synthesized. The properties of the superabsorbents, effects of various main factors on water absorbency have been systemically investigated. The structure, surface morphology and thermal stability of the composites were characterized by FTIR, XRD, SEM and thermo gravimetric analysis.

为了改善高吸水性树脂亲水基团的密度，同时以废塑料资源化再利用为目的，将刚性、疏水的聚苯乙烯引入到高吸水性树脂中，成功制备了废旧聚苯乙烯泡沫/丙烯酸/蒙脱土高吸水性树脂，并对所制备的高吸水性树脂的各项性能、吸水倍率的诸影响因素进行了系统讨论研究，同时也通过FTIR、XRD、SEM、热重分析等物理手段来表征复合高吸水性树脂的结构、表面形貌、热力学稳定性等性能。

Twistless yarn is stiffer than ring - spun and has greater luster, less elongation and better covering power owing to its ribbonlike character.

将无捻纱与环锭纱进行比较，无捻纱由于呈带状，刚性较大、光泽较好、伸长率较低，具有较好的覆盖系数。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。