评价结果表明：唐山市重度危险区占5%，较重危险区占13%，两者之和占18%；

The results indicate that the very dangerous area is 5%, dangerous area is 13%, both 18%;

youdao

评价结果表明：唐山市重度危险区占5%，较重危险区占13%，两者之和占18%；

The results indicate that the very dangerous area is 5%, dangerous area is 13%, both 18%;

youdao