论文部分内容阅读
据科学家研究,现代城市的空气中含有大量尘埃。据测定,每立方公里含量高达数千吨,对人的健康危害甚大,也是导致城市“文明病”的重要原因。孕妇经常到森林中旅游,由于树木光合作用强,能制造更多的氧气,空气特别新鲜,含尘量比城市要低30％以上,噪音也比城市低20分贝以上,既可以给孕妇提供充足的氧气,促进呼吸功能与全身各组织器官的代谢,又能给孕妇以宁静、舒坦、生气蓬勃的感觉,有利于胎儿的生长
According to scientists, the air in modern cities contains a lot of dust. It has been determined that the content of up to thousands of cubic kilometers per cubic kilometer, a great harm to human health, but also cause the city “civilized disease” an important reason. Pregnant women often travel to the forest. Due to the strong photosynthesis of trees, more oxygen can be produced and the air is especially fresh. The dust content is more than 30% lower than the urban area and the noise is more than 20 dB lower than the urban area. Oxygen, promote respiratory function and the body’s metabolism of various tissues and organs, but also to pregnant women with a quiet, comfortable, animated feeling is conducive to fetal growth