基本解释n.[生]核壳体；核蛋白壳；核包核酸；病毒粒子同根派生 英汉例句用作名词 (n.)The nucleocapsid is surrounded by an envelope which forms the outer layer of the virion and maintains intimate contact with host bodily fluids.核壳的外面再被包膜所包围，而包膜便是病毒粒子的最外层，直接与宿主的体液接触。