Its stomach contents mainly consist of hydrophyte, miscellaneous fishes, shrimps, mollusc, aquatic insects and worms.
胃内物组成有植物、小杂鱼、虾类、贝类、水生昆虫和蠕虫。
The result indicated that its helpful to improve water quality and entironment that plant hydrophyte with stated density in culturing crab pond.
结果表明：在养蟹池塘中种植一定密度的水生植物有利于水体生态环境的改善。
The functions of the hydrophyte filter bed(HFB) for improving source water quality were surveyed in terms of microcystin and trace organic pollutants.
从对藻毒素和微量有机污染物的去除方面考察了水生植物滤床（HFB）在改善源水水质方面的效果。
Ornamental hydrophyte is an indispensable material for afforestation, beautification and purification of waterscape and also a main element in making up gardening waterscape.
水生观赏植物是水体绿化、美化和净化不可缺少的材料，也是园林水景的主要构景要素。
Spirulina is a kind of oldest primitive hydrophyte. It contains various nutrients and biological active substances. Therefore, it has both healthy and medicinal effects on human body.
螺旋藻是一种最古老的水生原始生物，它富含多种营养素和生物活性物质，具有营养保健和治疗双重功能。
At the same time, take some measures such as adding microorganism, intermittent aeration, controlling the flow velocity, planting hydrophyte and so on to improve the effect of aeration.
同时可以采取投加外源微生物、间歇曝气运行方式、控制河流流速、种植水生植物等措施改善曝气充氧的效果。
This paper puts forward the typology of hydrophyte and ornamental characteristic and discusses the problem of the arrangement of scenes with hydrophyte in terms of every different aspect.
阐述了水生植物的类型及观赏特性，并从各种不同方面探讨了水生植物造景应注意的问题。
For measuring evaporation of shallow water lake and reservoir located in plain, it is important to know evaporative law of hydrophyte. The evaporation pan must be used with heat insulation.
浅水湖泊和平原水库蒸发量的测定，应包括水生植物的蒸发规律，其测定方法必须用隔热蒸发器。
For measuring evaporation of shallow water lake and reservoir located in plain, it is important to know evaporative law of hydrophyte. The evaporation pan must be used with heat insulation.
浅水湖泊和平原水库蒸发量的测定，应包括水生植物的蒸发规律，其测定方法必须用隔热蒸发器。
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