急求毕业论文摘要英文翻译,求那位大虾帮帮忙
来源:百度知道 编辑:UC知道 时间:2024/05/22 16:04:07
Chromium is widely distributed in nature, organisms mainly trivalent form of chromium. Trace elements is essential for people and livestock, but there will be the accumulation of excessive toxicity. Hexavalent chromium is the most toxic form, the toxicity of trivalent chromium than 100 times. In this paper, studies of chromium in soil and plants to study the migration of chromium on the impact of plants, a result that chromium can be stunted plant growth. Through the study of chromium in the body and the body cells and tissues of different physiological responses occur to explain the chrome on the principle of the human body, as well as the consequences of hazards. At the same time, the end of this article also describes several of the determination of chromium.