by providing development opportunity .These aspects set forth the reason of biotechnology industry rapid development.本人英语不是很好 仅四级水平 不过个人感觉翻译的还可以 看看楼主满意不 呵呵 难免会有错误。。
基于这个关系,Pimentel和Bulkley提出在鱼周围的水里的钙补偿了钙的流失,因此延迟了氟化物对生物体的影响。Studies on fluoride toxicity to freshwater fish should be conducted in water quality conditions of highest