abaxial
adj. 远轴的;轴外的
例句
Abaxial leaf surface with a patchy discontinuous indumentum.
叶背面具一不规则的不连续的毛被。
Leaf blade base cuneate, abaxial surface with gray-white indumentum; corolla magenta-rose.
背面用灰白色的毛被,叶片基部楔形;花冠。
The point in testing the abaxial paraboloid is to make sure that a right angled blade is used.
用刀口检验离轴抛物面时的要点是一定要用直角刀口。