桥的

On the morphological differentiation,by inducing of fetal calf serum,it wasshown that the cytotrophoblast cells underwent aggregation first,and the adjacentcytoplasm membranes became tightly contacted through desomosomes andcytoskeleton.Then the adjacent cytoplasm membranes disintegrated fragmentallyto form fusion pore-like structure.Finally the multinuclear cells formed and inwhich the intercellular desmosomes disappeared.Immunocytochemical stainingfurther demonstrated that the formation of syncytium was through cell membranefusion rather than the amitosis process.

细胞形态分化的研究结果表明：早孕胎盘来源的细胞滋养层细胞在血清诱导下，首先发生聚集，并通过桥粒和细胞骨架使相邻的细胞膜紧密接触；之后细胞膜发生片段断裂，形成融合孔样结构；细胞间桥粒消失，最终形成多核的合体细胞；免疫细胞化学分析进一步证实合体化是通过细胞膜融合而非无丝分裂（amitosis即细胞核分裂而细胞质不分裂）实现的。

In the dissertation, principles of phase-shifted full-bridge ZVS PWM and push-pull boost converter are analyzed; Reason of duty ratio dropping out and solution measures are introduced at the same time; The magnetic biasing and ZVS methods of Lagging brachium are studied detailedly in the bidirectional DC converters.

在本文中首先分析了移相全桥式ZVS-PWM功率变换和推挽式DC／DC Boost功率变换的工作原理，分析了移相全桥式滞后臂实现零电压关断困难以及占空比丢失的原因以及采取相应的改善措施，分析了双向DC／DC变换器产生偏磁的原因以及采取抗偏磁的措施。

The simulation model of three-phase bridge controlled rectifier circuit is constructed based on Matlab/Simulink.

应用Matlab的可视化仿真工具Simulink建立了三相桥式全控整流电路的仿真模型，在此基础上，对三相桥式全控整流电路的输出电压与控制角以及负载特性的关系进行了详细的仿真分析。

And tours the Long Bridge Park, visits the Hangzhou three strange scenic spots, same year "the Tale of the White Snake" center, the white wife and Xu Xian met it to judge the bridge unceasingly, the isolated hill was not orphaned, Liang Shanbo with wished the place long bridge which English 18 saw off not to be long In Guozhuang's has a Qing Dynasty west Hangzhou Xihu Yang Gongdi the private garden, this garden is the Wuxi merchant Guo indanthrene constructs, therefore names calls the Guozhuang, he has constructed very many small bridge over the flowing streams, pavilion pavilion in the garden, has introduced Xihu's real water in the garden, therefore also has name of the rockery real water.

然后我们去珍珠工厂去了解珍珠的养殖过程。再游览西湖新天地，西湖博物馆，新西湖南线，远眺雷锋塔。并游览长桥公园，参观杭州三怪景点，当年《白蛇传》中，白娘子和许仙相会之处断桥不断，孤山不孤，梁山伯与祝英台十八相送的地方长桥不长。郭庄在杭州西湖西面的杨公堤上有一座清代的私家花园，此园是无锡商人郭士林所建，故取名叫郭庄，他在园内兴建了很多小桥流水、楼阁亭台，把西湖的真水引入了园内，故又有假山真水之称。

Based on the method of multi-objective fuzzy optimization and the overhead traveling crane design, a mathematical model of fuzzy optimization for main box beam section is established. A fuzzy goal anthology is constructed. The fuzziness of multi-objective function and constraints is defined. The transformation of the fuzzy constraints set to normal constraints set in real number domain is realized by applying optimal level cut set method. The optimal solution and optimal constraint value of sub-objective function in the feasible field are found using the genetic algorithms.

应用多目标模糊优化方法，以工程设计中桥式起重机箱形主梁设计为实例，建立了桥式起重机箱形主梁多目标模糊优化设计的数学模型，构造了模糊目标集，确定了多目标函数的模糊性和约束的模糊性，并应用最优水平截集法实现了模糊约束到实数论域上的集合转换，从而用遗传算法寻求到子目标函数在可行域空间的最优解和约束最优值。

Follow district green shade in lake encircle, the landscape spring onion 茏, draw the bridge smoke, cloud tree cage yarn, of the mountain of 逶迤s, LIN2 QUAN2 is pretty, the mountain brook is profound.More than 90 places each park,beauty spot that have special features in, there is three seasons laurel son,six bridge smokes,nine in cloud is loose,ten in lotus flower, have"West Lake ten views" of the 著 more and set up one after another in recent years open of the new beauty spot of each of more than ten placeses special features, will connect 缀 to become a color rich in hues heavy garland West Lake, make its spring summer autumn the winter is each to have landscape, the 晴 rain breeze snow is each to have feeling with the result that.

沿湖地带绿荫环抱，山色葱茏，画桥烟柳，云树笼纱，逶迤群山之间，林泉秀美，溪涧幽深。90多处各具特色的公园、风景点中，有三秋桂子、六桥烟柳、九里云松、十里荷花，更有著名的"西湖十景"以及近年来相继建成开放的十多处各具特色的新景点，将西湖连缀成了色彩斑斓的大花环，使其春夏秋冬各有景色，晴雨风雪各有情致。

A design of temperature sensor with differential output is given, and its sensitivity as the function of temperature is analyzed theoretically and simulated. The theoretical model of response characteristic of viscous damping microbeam system under periodically driven force is built.

在此基础上，进一步从理论上分析了残存应力对微桥固有频率的影响，推导了微桥固有频率同温度的函数关系，提出了一种差动式谐振温度传感器的设计构想，并对其灵敏度随温度的变化进行了理论分析和模拟计算。

Taking Xiaoxi Bridge as an example,the thesis brings forward the economical 、simple 、construct-convenient 、light-tonnage prestressing technique.According to Yi'an bridge in Chongyi,on the twenty-meter long beam,certain load, the low prestressing concrete takes a all-around contrast with the full prestressing concrete and steel-reinforced concrete.

本文以小溪桥为工程背景，提出了适合低预应力混凝土的经济实用、工艺简单、便于施工的小吨位预应力工艺技术；以崇义义安桥为工程实例，把低预应力混凝土与全预应力混凝土、钢筋混凝土在20m 跨径、一定荷载的作用下作了全方位的对比。

It is understood that the Yangtze River Bridge have been completed with the opening of the Yangtze River Bridge, Sanqiao different, it is the main span of Nanjing, the first 1418 meters of the twin towers three-span suspension bridge, looks like a well-known San Francisco Golden Gate Bridge, but the main span longer than the Golden Gate Bridge more than one hundred and thirty meters.

据了解，长江四桥与已建成通车的长江二桥、三桥不同，它是南京第一座主跨1418米的双塔三跨悬索桥，外观类似著名的美国旧金山的金门大桥，但主跨比金门大桥还要长130多米。

Every "three in March,""Autumn" and other national holidays, the five Haiqiao flowers have become the sea, songs of the sea, the Zhuang Autonomous hospitable people on the bridge, put up banners, put a lantern, set folk songs one after another challenge, the Quartet welcomed the guests ......

每逢&三月三&、&八月十五&等民族节日，五海桥就成为了花的海洋、歌的海洋，好客的壮乡人在桥上，插上彩旗，摆上花灯，设置了一个又一个山歌擂台，欢迎四方的客人

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。