Care shall be taken to avoid stress concentration due to welding, heating and discontinuity of the structure or build-in stress.

应该特别注意由于焊接，加热和结构的非连续性产生的应力集中和嵌入的应力。

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While the togetherness of Christmas - ultimately what the day is all about — fosters surges in the happiness hormone, serotonin, the build up is characterised by high levels of stress, or cortisol.

圣诞节家人团聚的幸福感会使血清素水平升高，伴随而来的高度紧张感又会使得皮质醇水平升高。

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The discipline of community psychology studies how community groups interact in times of stress and seeks to build more healthy community relationships by using the insights of modern psychology.

社区心理学通过运用当代心理学的成果来学习一些社会团体在面临压力的时候相互之间是如何做出反应的，从而帮助他们建立更良好的社会关系。

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Radcliffe, who finished 23rd in the marathon at the Olympics after her build-up to Beijing was hampered by a stress fracture of her left thigh, showed no signs of fatigue.

BBC: Superb Radcliffe wins Great South