The stress-distribution about manhole structure of middle-pressure reactor is desicribed by using the methods of finite element analysis.

采用有限元法对中压反应釜人孔凸缘结构进行了应力分析，揭示了其应力分布情况。

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This paper analyzes hazards and reasons for full oil box when the middle-pressure oil motive for 50MW unit is restarted after it is stopped.

分析了50MW机组存在的中压油动机在停机后再启动时调速油泵后箱体满油的危害及原因，进行改造后取得了较好的效果。

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"What white middle-class parents do not always understand," she said, "is how much pressure recent immigrants feel to boost their children into the middle class."

她说：“来自中产阶级的白人父母们总是不理解，新移民为了让自己的孩子跻身中产阶级要承担多大的压力。”

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Middle-income whites have the best blood pressure.

VOA: standard.2010.04.08

Middle-order batsman Darren Lehmann is under pressure to retain his position in the lineup after scores of 12, 5 and 11 in the previous two Tests.

BBC: SPORT | Cricket | Other International | Australia add MacGill and Watson

Everywhere in the developed world, the decline of mass-production industries has put pressure on the roles and incomes of working-class and middle-class men.

CNN: Straight marriage is the real issue

They should assume that Obama's Middle East envoy George Mitchell will intensify his pressure - and escalate his threats - on Israel to make massive concessions to the Palestinians.

CENTERFORSECURITYPOLICY: The perils of presidential failure