1) radius vector
矢径
1.
WT5HX]Results: With the exception of C7 and L5 of vertebral radius vector,other radius vectors become larger in turn from top to bottom;The transverse diameter is bigger than the radius vector in the same vertebra;Vertebral heights of C3 to C6 gradually become lesser,those of C7 to L5,in turn,get bigger.
结果：椎体矢径除Ｃ７和Ｌ５外，其他由上而下矢径依次增大；椎体横径大于同一椎体的矢径；椎体高度为Ｃ３～Ｃ６逐渐减小、Ｃ７～Ｌ５依次增大。
2) radial vector
径矢
3) radius vector equation
矢径方程
1.
The transformation relations of coordinates and time between the radius vector equations in inertial frames were expressed by the formula of Lorentz transformation in the theory of special relativity, but its deducing process is quite troublesome.
在狭义相对论中,惯性系矢径方程的坐标和时间变换关系是用洛仑兹变换式来表达的,其推导过程相当繁琐。
4) radius vector
矢径向量
5) sagittal radius
弧矢半径
6) path vector
路径矢量
补充资料：骨盆出口后矢状径
骨盆出口后矢状径
后矢状径为坐骨结节间径中点与骶尾关节处之间的距离。测量方法是：戴手套后右手示指伸入孕妇肛门，并向骶骨方向，拇指置于孕妇体外骶尾部，两指共同找到骶尾关节，用尺放于坐骨结节径线上，测量器一端放于坐骨结节间中点，另一端放于骶尾关节处，测量器刻度数字即为后矢状径的长度。详见附图。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条