New V - Twist collagen technology is designed to increased arteriotomy coverage and enhance conformability to the artery.新的V - 绞合胶原技术是设计用来增加对动脉切开部位的覆盖和增强与动脉的一致性....
通过雌株末梢的纵切面所现出的几个瓶 状 的颈卵器, 这就是雌性生殖器官.A similar section through the female plant reveals several bottle - shape archegonia , the female reproductory organs.他们或者由雄株和雌株组成, 或者由雌株和两性个体 ( 雌金异株 ) 组成.They consist either male and ...