lower epidermis meaning in Chinese
下表皮
Examples
- The studies show common features among them such as the stomata which is found in the lower epidermis , the wavy anticlinal walls of the epidermmal cells and the cyclocytic stomatal type
结果表明，其间存在明显共性：表皮构造均为单面气孔式，上下表皮细胞垂周壁皆呈不同程度的波状起伏，气孔器类型皆为环列型。 - Thickness of upper and lower epidermis of leaves , width of xylem and phloem of annual and biennial branches , ratio of late wood to early wood , periderm thickness of biennial branches , and length of xylem ray present decreasing trends with latitude ascending ; while ratio of palisade tissue to spongy tissue , epidermis thickness of annual branches , and cortex thickness of biennial branches show unobvious variations with latitude increasing
叶的上下表皮厚度、 1和2年生枝木质部及韧皮部宽度、晚材早材比值、 2年生枝的周皮厚度、木射线长等均随纬度升高而呈下降趋势；而叶的栅栏组织和海绵组织比值、 1年生枝表皮厚度、 2年生皮层厚度等解剖结构随纬度变化没有明显规律。 - Both upper and lower epidermis cells are polygonal or irregular in shape in all species studied . the patterns of anticlinal walls are straight , arched or sinuous , and the raphal cuticular striastriae are occasionally observed on periclinal walls . stomatal apparatus and secretory cells are found on the upper epidermis of several species and on the lower epidermis of all species
结果表明：这些植物叶片的上、下表皮细胞呈多边形或不规则形，垂周壁式样为平直、弓形或波浪状，平周壁偶有脊状条纹；少数种类上表皮还有气孔器或分泌细胞，所有种类下表皮具气孔器和分泌细胞；气孔器类型以平列型和侧列型居多，偶尔有无规则型；气孔极区呈稍角质加厚或棒状加厚，稀t形加厚。 - The results showed that the differences of leaf thickness , cutin layer thickness , stockade tissue thickness , sponge tissue thickness , ratio of stockade tissue thickness to sponge tissue thickness , tightness of leaf tissue structure , sedimentation of leaf tissue structure and stoma density were significant , while the differences of the sizes of upper epidermis and lower epidermis were not
叶片厚度、角质层厚度、栅栏组织厚度、栅栏组织与海绵组织厚度的比值、叶片结构紧密度和气孔密度等值越大的含笑，受旱危害愈轻，其抗旱性就越强。