有羽状叶脉的

Any of various chiefly tropical evergreen trees,shrubs,or woody vines of the family Palmaeor Arecaceae, characteristically having unbranched trunks with a crown of large pinnate or palmate leaves having conspicuous parallel venation.

棕榈科植物棕榈科的各种主要的热带常绿树、灌木或木质藤本植物，特点为有无分支的树干，其顶端集生羽状或掌状的树叶，并带有明显的平行叶脉

Petioles acute-triangular in cross section, 5–20 cm, sheaths triangular-ovate; leaf blade triangular-ovate, 20–45 × 17–40 cm, 2–3-ternate-pinnate; leaflets subsessile or short-petiolulate, long-ovate to elliptic, 2.5–12 × 1–6 cm, base obliquely cordate to cuneate, margin coarse-toothed or serrate, apex acuminate, glabrous or hispidulous along nerves.

叶柄锐尖三角形的在横断面上，5-20厘米，鞘三角状卵形；叶片三角状卵形， 20-45 * 17-40 厘米，羽状2-3回三出；小叶近无柄或短的小叶柄，长卵形到椭圆形， 2.5-12 * 1-6 厘米，基部斜心形对楔形，边缘粗糙的齿或有锯齿，先端渐尖，无毛的或沿着叶脉具短硬毛。

Any of various chiefly tropical evergreen trees, shrubs, or woody vines of the family Palmae, characteristically having unbranched trunks with a crown of large pinnate or palmate leaves having conspicuous parallel venation.

棕榈科植物棕榈科的各种主要的热带常绿树、灌木或木质藤本植物，特点为有无分支的树干，其顶端集生羽状或掌状的树叶，并带有明显的平行叶脉

Leaves grow in clusters; stipe chestnut brown, shiny ; blade pentagonal, Zhang Kuange about 5-7 cm, there are three separate base, or connected to cleft pinna feather, apical pinna nearly diamond-shaped, triangular lateral pinna, feather shaft under the lateral side of the sliver compared with the previous long, the base of one the longest; vein plume bifurcation; leaves dark green above, here are milky white or milk yellow powder.

叶簇生；叶柄栗棕色，有光泽；叶片五角形，长宽各约5—7厘米，有3片基部相连的或分离的羽裂的羽片，顶生羽片近菱形，侧生羽片三角形，羽轴下侧的裂片较上侧的长，基部1片最长；叶脉羽状分叉；叶片上面暗绿色，下面有乳白色或乳黄色粉末。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。