叶刺拓扑可以一层一层2或3，叶子和棘层之间的联系可以交换和路由。
A leaf-spine topology can be layer 2 or layer 3 — the links between the leaf and spine layer can be switched or routed.
一种（海滨刺芹） 的欧洲海岸植物，生有带刺有肉的蓝叶，开蓝色或紫色的花头。
A European seashore plant (Eryngium maritimum) having prickly, fleshy, bluish leaves and heads of blue or purplish flowers.
对棕榈科刺葵属5种植物叶的热值和灰分含量的月变化进行了研究。
Monthly changes in the ash contents and caloric values of the leaves of 5 Phoenix species in Palmae were discussed.
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