Objective : To investigate the pathogenesis of the degenerative changes of the ligamentum flavum.目的: 探讨黄韧带退变的发生机理.Changes in the retinal arteries reflect the severity of systemic hypertensive disease.视网膜动脉的变化是全身高血压病严重性的反...
The engineer was an eager participant in technical co-operation.那位工程师热心参与技术合作。One who a mask, especially a participant a masquerade or masque.戴面具的人戴面具的人, 尤指假面舞会参加者.There is no comparison between the knowledge and skill o...