The cells of upper epidermis are often papillae.

叶上表皮细胞常呈乳突状。

youdao

The bulliform cells were situated in groove of upper epidermis facing the main vein.

正对主脉的上表皮凹陷处均有泡状细胞。

youdao

The upper epidermis, palisade tissues and leaves are all thinner, so the leaves are more tender, and its yield is 8% higher;

叶片上表皮、栅状组织和全叶均较薄，叶质柔嫩，茶叶产量平均提高8％左右；

youdao

The upper epidermis, palisade tissues and leaves are all thinner, so the leaves are more tender, and its yield is 8% higher;

叶片上表皮、栅状组织和全叶均较薄，叶质柔嫩，茶叶产量平均提高8％左右；

youdao