经过大修的刨子被装入木箱运回去。The much repaired plane was crated for the return journey.校舍亟待大修.The school buildings are in poor state of repair.这辆汽车需要大修.The car needs major repairs....
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...