变直

Based on existing creep theory and the spline function collocation point method, a numerical method was developed to calculate the transient creep strain and stress of a rotor of steam turbine to be aligned.

以往由于缺乏转子钢在直轴温度范围内的蠕变特性实验数据以及对大轴温度场、应力场和应变场的深入理论分析，直轴工艺还带有较大的经验性。

A curve coordinate system which is suitable for variable height curved box-girder were established. The flexure, torsion and distortional warping displacement functions were established, and the strain-deformation equations were obtained, a spatial finite element analysis method of trapeziform cross section variable-curvature box-girder with vertical symmetrical axis was also presented.

建立适合于变高度曲线箱梁的曲线坐标系，推导了变曲率、变高度箱梁弯曲、翘曲扭转和畸变的位移方程和应变-位移关系式，提出了具有一个竖直对称轴的变高度变曲率曲线箱梁的薄壁曲梁空间分析有限元方法。

It isverified that the method for using little deformation condition was true with accurate solution of three-piece straightening curve.

文摘：基于三段矫直曲线应变速率的假设，通过计算三段矫直曲线的精确解，验证了使用小变形条件的正确性；考虑高温铸坯蠕变性能，对铸坯的力学行为进行了分析，得出了使用三段矫直曲线方法，铸坯应变速率、应力及应变在矫直区内变化较为平缓，可有效避免铸坯内裂纹的形成；使用本文三段矫直曲线精确解，调整辊列位置，可进行连铸机的在线技术改造。

It isverified that the method for using little deformation condition was true with accurate solution of threepiece straightening curve.

文摘：三段矫直曲线应变速率的假设，通过计算三段矫直曲线的精确解，验证了使用小变形条件的正确性；考虑高温铸坯蠕变性能，对铸坯的力学行为进行了分析，得出了使用三段矫直曲线方法，铸坯应变速率、应力及应变在矫直区内变化较为平缓，可有效避免铸坯内裂纹的形成；使用本文三段矫直曲线精确解，调整辊列位置，可进行连铸机的在线技术改造。

In this dissertation, considering the influence of transverse shearing deflection and noncoincidence of torsion center and gravity center, the equilibrium formulas of variable-curvature box-girder with rectangular cross section were established. Based on deformation expression of arbitrary point on the girder and relationship between inner forces and displacement equations, considering noncoincidence of torsional center and gravity center, the governing differential equations for variable-curvature box-girders were generalized.

针对具有竖直对称轴的矩形断面变曲率箱梁，考虑了挠曲剪切应变和曲梁剪心和形心分离的影响，推导了变曲率箱梁的平衡方程；通过箱梁内任一点的位移方程和内力-位移关系，推导了考虑曲梁剪心和形心分离的变曲率箱梁的挠曲扭转控制微分方程。

In this paper, based on analysis the characteristic of direct-drive WPGS and other devices, the main circuit structure, which composed of three-phase full bridge rectifier, sepic chopper and single-phase full-bridge inverter, is presented.

本文在详细分析直驱风力发电系统特点和已有逆变装置的基础上，确立了三相不可控整流桥+SEPIC变换电路+单相全桥逆变电路的逆变装置主电路结构。

Comparing comprehensive ly the present various current converting circuits, it is proposed an design structure of direct-driven wind power generation current converting systems in megawatt level.

摘 要：在综合比较当前适合直驱型风力发电机组的各种变流电路的基础上[1~ 2]，提出了一种兆瓦级直驱型风力发电变流系统的设计结构，即采用不控整流+升压斩波+SPWM逆变的变流器将电机发出的电能转换为可接入电网的恒频恒压的交流电。

He was almost thirteen before his right leg was straight again.

他快要到十三岁的时候，他的右腿才再变直。

Combed Cotton - Combing is process to straighten fibers, extract nebs, foreign matter and short fibers in order to produce a stronger, more even, finer, smoother yarn that will accept dyes better.

精梳是一个使纤维变直，去掉纤维中的尖头，其他杂质和短纤维，以生产出更坚固，更匀称，更纤细，更平滑，能更好地进行染色的纱线的过程。

PETA claims that researchers in Oregon are killing gay sheep and cutting open their brains in order to learn how to turn gay rams straight.

善待动物组织称，俄勒冈的研究人员杀掉同志公羊并切开大脑，以了解如何把同志公羊变直。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。