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1·A radon proof hydrous paint could well avoid the perniciousness of radon. The results of experiment and...

本文分析了试验结果，探讨了防氡涂料的机理。

2·Following introduction on status of urban road traffic noise and its perniciousness, recent progresses in urban traffic noise assessment were browsed.

在分析城市道路交通噪声现状的主要危害的基础上，较全面介绍了国内外城市道路交通噪声评价方法的最新进展。

3·This paper presents the producing cause of different unfavourable flow conditions in the outlet area of approach channel for ship gate and its perniciousness.

阐述了水利枢纽船闸引航道口门区各种不利流态产生的原因，及其危害性，和提出了改善的措施。

4·The act of refusing to pay the social insurance has serious perniciousness and illegality. The administrative penalty is insufficient to keep it from growing and spreading.

拒不缴纳社会保险费的行为，具有严重的社会危害性和违法性，采用行政处罚不足以遏制其滋生蔓延。

5·This paper expounds the perniciousness of illegally occupying the burning line, analyzes the cause of illegally occupying the burning line, and puts forward some effective treatment measures.

阐述了违章占压燃气管线的危害性，分析了造成违章占压燃气管线的原因，提出了有效的治理措施。

危害性

1·This paper presents the producing cause of different unfavourable flow conditions in the outlet area of approach channel for ship gate and its perniciousness.

阐述了水利枢纽船闸引航道口门区各种不利流态产生的原因，及其危害性，和提出了改善的措施。

2·The act of refusing to pay the social insurance has serious perniciousness and illegality. The administrative penalty is insufficient to keep it from growing and spreading.

拒不缴纳社会保险费的行为，具有严重的社会危害性和违法性，采用行政处罚不足以遏制其滋生蔓延。