An order of dicotyledonous plants including moraceae and urticaceae and ulmaceae .

双子叶植物的一个目，包含桑科、荨麻科和榆科。

A dicotyledonous family of marsh plants of order gentianales .

龙胆属沼泽植物中双子叶植物科。

Combined surveying stoma types of dicotyledonous plants survey of bacteria pollution in the air , investigating learning ways and routes were explored in biological scientific movements .

结合《双子叶植物气孔类型观察》和《空气中细菌污染的监测》活动项目，探索生物科技活动中研究性学习的方法和途径。

Family of more or less advanced dicotyledonous trees and shrubs and herbs .

程度或高或低的高级双子叶草本植物和一些乔木及灌木的属。

The reticulate pattern of minor veins is characteristic of most dicotyledonous plants .

细脉的网状式样是双子叶植物的主要特征。