That flies to his home in the south before winter comes.

When winter comes the days close in.

冬天来临，白昼渐短。

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Some birds will fly away to the south when winter comes.

冬天到姑且，一些很小的鸟将飞往南边。

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Oh Wind, If Winter comes, can Spring be far behind?

呵，西风，如果冬天已到，难道春天还用久等？

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It will become cold when winter comes.

冬天来时天会冷。

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When winter comes to Ontario, many people head south.

冬天临到安大略省时，很多人跑到南方避寒；

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As summer goes and winter comes, time flows like water.

寒来暑往几时休，光阴逐水流。

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It becomes colder and colder when winter comes.

立冬了，天越来越冷。

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Winter comes after fall.

秋去冬来。

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Then weather changes again, and winter comes.

气候再转变时，冬天来了。

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Furthermore, plastic collapse strength, energy absorption and elastic modulus of the closed cell aluminum foam were studied in relation to cell structures.

同时，研究了屈服强度、单位体积吸收能和弹性模量与泡沫铝组织特性的关系。

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In this dissertation, the collapse strength of casing with crescent-shaped wear was analyzed with finite element method as plane or spatial problem.

因此，用有限元方法分别按平面问题和空间问题研究了含新月形缺陷套管的抗挤强度；

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The calculation case shows that the result of collapse strength calculated by using the triaxial stress circle theory is bigger than that by other theories.

通过实例计算，对比分析了用三向应力圆理论与其他几种理论计算的抗挤强度值。结果表明，应用三向应力圆理论计算的值偏大。

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The critical load and the equivalent collapse strength are defined respectively according to its long displacement features and strength features under non-uniform loads.

并依其非均匀载荷下的大位移特征和强度特征，分别定义了临界载荷和等效抗挤强度。

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Ffect of nonuniform loading on casing collapse strength

不均匀载荷对套管抗挤毁性能的影响

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Simplified theoretical models and analytical formulae are developed for the elastic stiffness and initial collapse strength of sandwich arches.

建立了简化的理论分析模型，得到了夹芯拱弹性刚度和初始坍塌强度的分析方程，并且与实验结果有很好的吻合。

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Under nonuniform loading, casing collapse strength decreased drastically and the radial deformation increased obviously.

不均匀载荷使套管的抗挤毁强度迅速下降，套管的径向变形显著增大；

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The Effect of Prefabricated-Hole Parameters on Casing Collapse Strength under Non-Uniform Loads

非均匀载荷下预制孔参数对抗挤强度的影响

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Finite element analyses on synthetic factors of perforating casing's collapse strength

射孔套管抗挤强度综合因素有限元分析

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Research on Collapse Strength of Oil Casing under Non-uniform Loads

非均布载荷下石油套管抗挤强度问题研究

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Model and elasticity analysis of collapse strength of casing-cement mantle

套管水泥环组合抗挤强度模型及其弹性分析

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