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Aiming at mid-column with crane beam in gabled frames,three projects are compared to prove that it is most economic to take advantage of the crane beam to setup knee bracing as the reliable lateral support,thereby to minimize the out-plane effective length.

文中针对设有吊车梁的门式刚架中柱，对3种设计方案进行比较，证明利用吊车梁设置隅撑，为中柱提供可靠侧向支承点，从而减小其平面外计算长度，该方法最经济实用。

Haihe River Bridge opened by the East and West Approach and the main bridge consists of three parts, the main bridge structure is designed to enact rotary steel beam, the net cross 68 meters, turning radius of 35 meters, beam rotation angle of 85 degrees, at the international bridge in the same belong to large-scale, long-span bridges of legislation to open one of the rotor.

海河开启桥由东西引桥和主桥三部分组成，主桥结构设计为立转式钢结构悬臂梁，净跨68米，转动半径为35米，梁端转动角度为85度，在国际同类桥梁中属于大规模、大跨径的立转式开启桥之一。

The plate beam finite element method of spatial computation is presented for the plate rib T-beam bridge with multi-rib.

由此提出了板肋式多肋T梁桥空间计算的板梁有限单元法。

Proceeded for beam strength and stress; analysis and checking calculations are made of Traverse beam and surface plate.

将所推荐桥梁进行了全面的计算分析，利用横向分布系数确定活载分布，求得上部结构主梁的内力，从而确定主梁配筋，然后进行主梁强度和应力验算，并分析验算了横梁和桥面板。

The energy threshold of the first Stokes is calculated according to an approximate theory including the effect of focused pump beam and beam quality.

根据考虑泵浦聚焦和泵浦光束质量影响的近似拉曼散射理论计算了泵浦阈值的理论曲线，并与实验数据和有关文献进行了比较。

There exists a maximum for the amplification of high-power Stokes beam which is restricted by the energy of pump beam, the absorption coefficient of medium and the length of medium cell, etc.

通过优化介质池长和介质吸收系数等参量可以提高斯托克斯光放大的最大值，并获得较高的能量提取效率。

RS comply with the special growth law,does not have" threshold "characteristics.lt depends not only on the intensity of pump beam but also on the intensity of Stokes beam itself.

tokes束的增长不仅依赖于泵浦波的强度，而且也和自身的强度有关系。

In the second chapter, the operating principle of solid-state laser is analyzed. Based on the model of four-level system and with the space-related rate equations, the space distribution of laser beam and pump beam, the threshold pump power, the output power, the slope efficiency, the input-output characteristic and the effect of space variables on the output character are studied. Also, the introcavity second harmonic generation theory is discussed.

第二章分析了固体激光器的工作原理，以四能级系统为模型，从与空间相关的速率方程出发，研究了泵浦激光和振荡激光的空间分布、阈值功率、输出功率与斜效率、LD端面泵浦固体激光器的输入输出特性及各空间变量对输出特性的影响，并讨论了腔内二次谐波产生理论。

When a weak beam is also present,the fanning distribution isshifted to a larger α′relative to the case when only pump beam ispresent.

在强泵浦光引起的Fanning效应中，加上弱信号后，Fanning光分布的峰值将向弱信号方向位移。

Due to shrinkage of the beam waist of laser mode to match the pump beam, this laser can attain very high intensity in the pump region of gain medium and therefore most of its gain is depleted even by a standing wave.

由於雷射模会自动调整大小以符合泵浦光斑，雷射可以在被帮浦增益介质区域内达到很高的光强度，而使得大部分的增益被高强度的驻波消耗掉。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。