雏鸡似的鹌鹑在周围漫步,一副旁若无人的神气, 十分娇美.The quail were walking around like pullets, seeming all dainty and unseen.农场只准引入来自渔农自然护理署认可孵化场的雏鸡.Chicks must be introduced only from AFCD recognised hatcheries.小雏鸡围在母鸡的周围捉虫子.The baby chicks a...
越南战场上用于毁灭林区的“橙剂”，其成分是二氧杂芑。Dioxin was the ingredient in Agent Orange, used to defoliate Vietnam.所形成的水解反应物是二盐酸甲撑二氧胺.The resultant hydrolytic reaction product is methylenedioxyamine dihydrochloride.后者是由二氧杂环戊烷中活化较弱的C -H 键离解而...
That leads to biquadratic equations for solution.它们又引出待解的双二次方程.The global topological structure of the biquadratic systems is discussed and their coefficient conditions are given.讨论了一类齐四次系统的全局结构,并给出了它们的系数条件.In this paper...