其核酸结构为线状双股DNA, 衣壳为二十面体对称,有囊膜.It has linear double strand DNA, icosahedral - capsid and envelope.八面体和二十面体的三角化效果不错,而且也不难实现.Octahedral and icosahedral tessellations work well and are notvery difficult to implement.球状病毒衣壳采用二...
The Aswan Dam harnessed ( the waters of ) the Nile.阿斯安水坝利用尼罗河 ( 的水流 ) 产生动力.The Aswan Dam helps to control the River Nile in Egypt.阿斯旺水坝有助于控制埃及的尼罗河.A lateen - rigged sailboat called a felucca plies the Nile River in fadin...
Old people often subsist on very small incomes.老人往往靠十分微薄的收入艰难度日。The living things on the earth could not subsist on Mars.地球上的生物不可能在火星上生存.I was very sorry to tell him that the little I had would not subsist.我很抱歉地告诉他我所有的一点...