This review is about the stress origins, stress effects, stress evaluation, measures of prevention and control of occupational stress of the medical and hygienic staffs.

该文将对医务卫生人员的职业性应激的应激源、应激效应、应激评价和预防控制措施等方面作一综述。

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The results show that the main origins of the production of defects are axial temperature gradient and thermal stress in crystal.

结果表明：温度梯度和热应力是形成晶体中缺陷的主要原因。

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In Africa, the firm does not stress the tipple's Scottish origins.

ECONOMIST: Persuading Africans to switch from beer to Scotch