Recent decades, the issues concerning natural radiation exposure, NORM in short, have been paid close attention to.

近年来，对天然照射的控制问题越来越受到社会各方面的关注。

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Not only the research method of norm analysis can be used, the other research method of human social science and natural science can also be used too.

既可以使用规范分析的研究方法，也可以采用其他人文社会科学甚至自然科学的研究方法。

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The thinking norm based on the natural science has an attempt to make the research into pedagogy scientific only with the positive method, which is the product of scientism.

受制于自然科学的思维范型，企图仅通过实证的方法来使教育学研究科学化，这样的主张是唯科学主义的产物。

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So this is not necessarily the norm or the natural process.

WHITEHOUSE: Press Briefing

Critics claim that China has acquired ownership of natural resources, although service contracts and other concessions are the norm.

ECONOMIST: The Chinese in Africa

The guerrillas want a return to the old Latin American norm of state-ownership of energy, telecoms, public services, roads, ports and natural resources.

ECONOMIST: Colombia dreams of peace