刚性的

This on one hand the population basis that online parents of profit from China and the explosive type growth that follow parental number a few years this form; On the other hand, the expenditure that Chinese parents gets on in next generation bodies is rigid demand more, the total spending stability of the juvenile products that forms from this is in annual 50 billion - 55 billion between, the effect that suffers economic fluctuation is quite finite.

这一方面得益于中国上网父母和准父母人数这几年的爆炸式增长形成的人口基础；另一方面，中国父母在下一代身上的花费多为刚性需求，由此形成的儿童用品的总消费稳定在每年500亿-550亿之间，受经济波动的影响相当有限。

Coaxial, contrarotating and widely separated semi-rigid three-blade rotors, with swept blade tip, attached to hub by steel plates; small fuselage cross-section, with nose sensors; flat-screen cockpit, heavily armour protected by combined steel/aluminium armour and spaced aluminium plates, with rearview mirror above windscreen; small sweptback tailfin, with inset rudder and large tab; high-set tailplane on rear fuselage, with endplate auxiliary fins; retractable landing gear; mid-set unswept wings, carrying ECM pods at tips; four underwing weapon pylons; engines above wingroots; high agility for fast, low-flying, close-range attack role; partially dismantled can be air-ferried in Il-76 freighter.

同轴，并广泛分离的反向半刚性三叶片转子，叶片尖后掠，隶属由钢板枢纽；小机身的横截面，有鼻子传感器；纯平驾驶舱，重装甲保护的组合钢/铝装甲铝及间隔板，前挡风玻璃与后视镜以上；小sweptback尾翼，方向舵与插图和大型标签；高载列于机身后部尾翼，与终板辅助鳍，可伸缩的起落架，中集未波及翅膀，承载的秘诀流脑豆荚；四翼武器挂架； wingroots发动机以上；快速高敏捷性，低空飞行，近距离攻击的作用；部分拆除，可空气中摆渡伊尔76货机。

According to the working procedure chart of theZH1105W diesel engine's gear cap analysis workpiece's precision, the surface roughness, thespecification, the processing spot size, the shape structure,material degree of hardness, the work piece rigidity and thedifferent of the components batch size to definite technique andtechnological process, determine aggregatemachine-tool's overall plan. Consider to theirregularity components but have high accuracy holes to beprocessing. So,"two holes at aface" is the best localization plan.

根据ZH1105W柴油机齿轮室盖的工序图分析其精度、表面粗糙度、技术要求、加工部位尺寸、形状结构、材料硬度、工件刚性及零件的批量的大小不同，确定被加工零件工艺方法和工艺过程，确定该组合机床的总体设计方案；考虑该零件表面结构的不规则性但有较高精度的孔需要加工，定位基准选择&一面双孔&是最佳的方法。

New ruthenium benzylidene complexes benzylidene[1,3-bis(2,6-dimethylphenyl)-4,5-dihydroimidazol-2-ylidene] [k~2-diphenylphosphinoacetato] monochlororuthenium (46), benzylidene[1,3-bis(2,6-dimethylphenyl)-4,5-dihydroimidazol-2-ylidene][k~2-3-propionato]monochlororuthenium (47), benzylidene[1,3-bis(2,6-dimethylphenyl)-4,5-dihydroimidazol-2-ylidene] [k~2-2-benzonato]monochlororuthenium (48) featured five-membered, flexible six-membered and rigidsix-membered chelating rings respectively are prepared by reactions of complex 41 withcorresponding sodium phosphino-carboxylates. It is confirmed by X-ray crystallographicanalysis that the coordination geometries of complexes 46 and 47 are distorted squarepyramids with phosphino-carboxylate ligands chelating to ruthenium, and the coordinationbetween ruthenium and benzylidene ligands are strengthened.

用二苯基瞵乙酸盐、二苯基膦丙酸盐、二苯基膦苯甲酸盐与钌卡宾配合物41反应合成了三个新的钌卡宾配合物：含五元膦-氧螯合环的1，3-二-(2，6-二甲苯基)-4，5-二氢咪唑基1-苯亚甲基--一氯合钌(46)、含六元柔性膦-氧螯合环的[1，3-二-(2，6-二甲苯基)-4，5-二氢咪唑基1-苯亚甲基--一氯合钌(47)及含六元刚性膦-氧螯合环的[1，3-二-(2，6-二甲苯基)-4，5-二氢咪唑基]-苯亚甲基--一氯合钌(48)。X射线单晶衍射分析证明，配合物46、47都为变形的四方锥构型，膦-氧与钌形成螯合配位，其中苯亚甲基与钌的配位得以加强。

PP1740 copolymer is a multi phase copolymer,composed of homo-polypropylene,ethylene-propylene rubber,and crystallizable propylene-ethylene copolymer.Homo-polypropylene part offers rigidity and EPR part offers impact strength.The relative ...

研究结果表明，PP1740共聚物由均聚聚丙烯、乙丙橡胶和可结晶的乙丙共聚物组成，具有优良的机械性能；均聚聚丙烯为PP1740共聚物提供刚性，乙丙橡胶可提高PP1740共聚物的抗冲性能；PP1740共聚物的相对分子质量分布呈多分散性，相对分子质量分布较宽；乙丙橡胶的相对分子质量较大，以直径1～2μm球型微粒均匀分布在聚丙烯基体中，有利于提高PP1740共聚物的冲击强度；PP1740共聚物的熔点较高，耐热性好。

The organic/inorganic composites, as new materials that combine the inorganic phase"s rigidity,stability and the organic phase"s toughness and workability, have important theoretical and realisticsignificance in materials science. C_(60) is a brand-new holosymmetry spherical molecule with theunique physical and chemical property, displaying wide implications and applications of physics,chemistry, biology, materials science, medicine, electronics, and so on.

有机／无机复合材料集无机相的刚性、稳定性和有机相的韧性、加工性等诸多特性于一体的一类新型材料，具有重要的理论和现实意义。C_(60)是一个全新的全对称球形分子，具有独特的物理、化学性能，已广泛地影响和应用到物理、化学、生物学、材料学、医学、电子学等许多领域。

The PSF/TLCP, PC/TLCP blends are seen to exhibit a monotonical decrease with the amount of TLCP increased, the viscosity versus composition curves of PPS/TLCP composites, however, exhibit a minimim with the concentration of TLCP increased.

对于相对较为柔性的聚合物PSF、PC，复合体系的表观粘度随着TLCP用量的增加而降低，但对于刚性较大的聚合物如PPS，则当TLCP用量增加到某一值后，TLCP的加入反而使复合体系的粘度增大，粘度随组成的变化有一最小值。

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。

It is furthernoticed that the local-ordered characteristics of toroids is determined by thecrosslinking effects of spermidine to DNA chains as well as the theperisistence length of DNA in that circumstance.

研究了DNA刚性长度的变化现象及亚精胺分子的桥联作用对有序凝聚的影响，提出了具有不同种微结构特征的DNA凝聚环具有相似的启动机制的观点。

Property- developers: 1 Mr. REN Zhiqiang, chairman of Huayuan, said recently that developers now sit on 360mn hectors of land, which will lead to 250mn sqm house inventory by 2009 year end, roughly 1/3 of average annual supply. 2 Mr. GU Yunchang, a deputy head of China Real Estate Association , said that 1Q09 sales was from the pent-up demand from 1st house buyers, while people trying to upgrade 1st houses or buy 2nd houses have not stepped in.

华远地产董事长任志强最近称全国开发商手里待开发的土地约有3.6亿公顷，全年房屋库存也会有2.5亿平方米，这意味着全国每年房屋销量的1/3将处于库存状态；2）中国房地产业协会副会长兼秘书长顾云昌称09年第一季度的销售量主要是依靠一手方购买者的刚性需求推动的，而真正购买大的房子以及二套房购买者则比较少。

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。