Flavin: Any of a class of organic compounds, pale yellow biological pigments that fluoresce green.黄素: 一组浅黄 、 绿萤光生物色素,在植物和动物组织中分布很广,含量少.The cheaper FNDs fluoresce roughly as well as those produced with an electron beam.此种...
A one-mile area around the wreck is still off limits...沉船方圆一英里内仍然禁止进入。It is difficult to define the detection limits obtained by chelation - solvent extraction.确定螯合 -- 溶剂萃取法所得到的检测限颇为困难.Fraternizing with the customers is ...