The left wing dipped until it was perpendicular to the ground.左翼下垂至与地面成90度角。Are the lines perpendicular to each other?这些直线相互垂直吗？The two lines of bones are set perpendicular to one another.这两排骨头相互垂直....
The sides of the loch are almost perpendicular.湖岸几乎都是垂直的。Those that are aligned perpendicular to the plane are called axial hydrogens.与平面垂直定向的氢叫做直立氢.A perpendicular bisector of a chord passes through the centre and bisec...
这老人因痼疾已卧床很久了.The old man was in bed with an obstinate disease.他身患痼疾, 常年缠绵病榻.He's bedridden throughout the year with a lingering, obstinate disease.细辛(马兜铃科细辛属)为我国传统中草药,具有祛风散寒,通窍止痛,温肺化饮之功效,自古以来,一直被医家视为祛除痼疾的常用药.Asarum ...