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The reasons of cracking and large deformation on common reinforced concrete continuous beam bridge were discussed.

就普通钢筋混凝土连续箱梁桥产生开裂和过大的变形等问题的产生原因进行了一定的探讨。

Beam bridge is the main load-bearing structures, with the development of society, on the highway bridge has been increasingly widely used.

这个怎么翻译？梁是桥的主要承重构件，随着社会的发展，桥梁在高速公路中得到越来越广泛的应用。

According to this method,a stochastic wind loading on a main beam of a suspended bridge with a span of 1000m was simulated to verify the efficiency of the method.

从我国桥梁工程建设的历史来看，桥梁的跨度有不断增大的趋势，风对桥梁的作用也越来越显著，风荷载已经是大

The influence of different locations and depths of crack on nonlinear vibration behaviors for the cracked main beam of bridge was analyzed by the numerical calculation.

通过数值计算，分析了裂纹的位置和深度的变化对车桥耦合系统中含裂纹主桥的非线形动力特性的影响。

Beam from the World Trade Center on display in Boston, MA, Sept.

2002年9月11日，在麻省波士顿展示的世界贸易中心房梁。

Swing Beam Shear Cut the last knife in the process of arc around a fixed axis to swing through leverage, the fulcrum force is small, can increase cutting-edge life, the machine life, the whole structure is compact, and can non-polar adjust the amount of the trip on the tool carrier, greatly improving efficiency.

摆式剪板机的上刀架在剪切过程中绕一固定轴线作圆弧摆动，通过杠杆作用，支点受力小，可提高剪切刃寿命、机器寿命，整机结构紧凑，并能无极调节上刀架的行程量，大大提高工作效率。

This paper analyses the longitudinal crack on the near net shape beam blank web surface in Laigang, gives the influencing factors and improved measures.

对近终形异型坯腹板表面纵向裂纹问题进行了分析，找出了工艺和设备方面的影响因素，通过对钢水质量、冷却条件、设备结构等方面进行优化改进，解决了铸坯表面裂纹缺陷问题，铸坯质量合格率由94%提高到99.5%。

This paper studies the focusing characteristics of Gauss beam passing through zone plate based on the characteristics of zone plate.

从波带片的特性出发研究高斯光束通过波带片的聚焦特性。

A general theory on stress analysis of composite beam and composite plate under distributed loading is presented in the first part.

一、提出了复合材料层合梁和层合板应力分析的一般理论。

A method of the buckling critical load for laminated beam and laminated plate under Hamilton system is presented on this basis.

本文首先简单地介绍了一下混合状态方程的重要性和与之对应的Hamilton正则方程的构造方法。

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。