And besides those early buckling tests directed by overseas scholars, only some elementary work has been reported at home.

试验方面，除早期国外学者所进行的一些研究外，国内虽已完成了部分工作，但也只是初步；

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Total quantity check of pollutant discharge was the most difficult elementary work of total quantity control of pollutant discharge.

排放污染物总量核定是排放污染物总量控制中的一项难度很大的基础工作。

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This practice inspires us that we must strengthen the elementary work of intelligence, have the awareness of evidence - orientation, and fully utilize the method of modern science and technology.

这种理论的实践启示我们，必须加强情报信息基础工作，树立证据第一意识，充分运用现代科技手段。

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Conversely, the worst-paying college majors are child and family studies, elementary education, social work, culinary arts, special education, recreation and leisure studies, religious studies, and athletic training.

FORBES: The 15 Most Valuable College Majors

Say a town wants to put people to work rebuilding a crumbling elementary school or putting up wind turbines.

WHITEHOUSE: Spurring Job Growth in the Private Sector

He wants the school day lengthened to seven hours for elementary children, for teachers to work 38 weeks a year, and to be able to introduce differentiated pay.

ECONOMIST: A politically embarrassing strike