水生植物

It is an organ of perennation or vegetative propagation, and is characteristic of various water plants (e.g.Sagittaria).

这是多年生营养官，还是多种水生植物的特征之一(例如：Sagittaria)。

Quillworts are heterosporous, mainly aquatic perennials, with a dense rosette of tubular quill-like leaves arising from a short, stout rootstock.

水韭目的植物具有异型孢子，是多年水生植物。其管状条形叶密集簇生于粗短的根茎之上。

The result indicates that great differences,which have significant influence on the aqua-plants,exist in the evapotranspire,the bio-mass,the root density and the root length.

研究的结果表，不同水生植物的蒸散量、生物量、根密度根长存在较大的差异，这些差异对水生植物的泌氧性能、碎石床人工湿地的水力负荷率、氮磷去除效果有污染物的降解有重要的影响。

In any navigation channel, the following activities are prohibited: abandoning sunken vessels, laying fishing implements impedimental to navigation, and cultivating aquatic plants.

在航道内不得弃置沉船，不得设置碍航渔具，不得种植水生植物。