木射线 meaning in English
wood ray; xylary ray
xylem ray
Examples
- Ray tracheid walls smooth or with minute dentations
木射线具单列射线和纺锤状射线。 - R ays e ntirely p arenchymatous , u ni - serate ; h orizontal a nd t angential w alls o f r ay c ells a re smooth and thin
木射线单列全由射线薄壁细胞组成；射线细胞水平壁薄；端壁薄，平滑。 - Rays entirely parenchymatous , uni - serate ; horizontal and tangential walls of ray cells smooth and thin . cross - field pitting taxodoid with 1 - 4 pits
木射线单列，全由射线薄壁细胞组成；射线细胞水平壁薄，纹孔缺乏，端壁平滑。 - 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。