abaxial surface
常见例句
- Abaxial surface of calyx with needle-like prickles.
背面花萼具针叶象一样皮刺。
dict.cn - The epidermis of culm is identical to the abaxial surface of leaf blades both in transverse section and in surface view.
秆表皮的横切面观和表面观均与叶的下表皮相似。 - The sori are borne on the abaxial surface of the pinnule, arranged in two rows parallel to the midvein, elliptic, and composed of 4-10 round sporangia.
囊群椭圆形，由4～ 10个孢子囊组成，着生于小羽片背面，位于中脉的两侧； 返回 abaxial surface