查询词典 aquatic plant

However, many multicellular algae are also capable of photosynthesis, biological, and plant them the most important difference is that aquatic and terrestrial.

但许多多细胞的藻类也是能够进行光合作用的生物，它们与植物的最重要区别就是水生和陆生。

However, many animal and plant foods from the aquatic environment, particularly marine fish, are poikilothermic and are adapted to living at low temperatures (-1 to 10℃).

然而，许多动物和植物食品的水生环境，特别是海鱼，是poikilothermic和适应生活在低温（-1至10 ℃）。

Institute has a perennial root flowers, aquatic park and plant flowers 12 flower varieties ratoon experiment.

拥有宿根花卉研究所、水生花卉种植园和十二个宿根花卉良种实验场。

This climate variation（4） contribute（5） to the enormous（6） diversity（7） of plant life in Australia, including Rainforests, Woodlands, Grass and Scrublands, Sclerophyll Forests both wet and dry, Coastal Heathlands, Alpine Forests, Saltbush, Mallee and Aquatic plants as well.

由于气候的差异，使得澳洲拥有多样的植物生态，包括雨林、森林、草原以及矮灌丛区、干湿型地中海硬叶森林群系、沼泽、海岸荒地、高山林、盐丛林、桉树灌丛以及水生植物等。

This ancestor was a single-celled aquatic eukaryote, and would have had the common features of animal and plant cells described above.

它是单细胞水生真核生物，并应该具备上述动物和植物细胞的共同特点。

Clone reproduction is signific ant in plant kingdom and has many types, especially in aquatic vascular plants.

克隆繁殖是植物界的一种重要的繁殖方式，具有很大的多样性，特别是水生维管植物更是如此。

By imitating different concentration of Cd2+ Cu2+ Cr3+ Cr6+and Zn2+polluted water environment,we mainly studied their toxic effects on aquatic piants by means of measurement of physiologicai indexes and electron microscopy observation as well as the relieving to Cu2+ injury of antioxidase enzyme system in Lemna minor L. and Vallisneria asiatica Miki in this paper by throwing Ce.the experimental results showed that Cd2+ Cu2+ Cr3+ Cr6+ and Zn2+ might injure photosynthetic systems, protective enzyme system, substance metabolism systems and cell ultrastructure of the plant.

本文通过模拟不同浓度梯度的重金属Cd~(2+)、Cu~(2+)、Cr~(3+)、Cr~(6+)和Zn~(2+)污染环境，利用生理生化测定、扫描电镜、透射电镜、气相色谱及激光共聚焦等实验手段，研究了四种金属离子对不同生态型的水生植物的毒害影响，初步探索了Ce对浮萍Cu害的缓解效应和La、Zn及其交互作用对浮萍活性氧清除系统影响。

With 5 plants including Lindernia rotundifolia, Cryptocoryne crispatula, Hygrophila stricta, Microrium sp. and Peperomia sandersii as the tested materials and the highest eutrophic lake water from Guishui Lake in Yanqing County in Beijing City as the matrix of plant growth, 3 test groups with high, middle and low input density were set up to study the effect of input density of aquatic plants on the purifying efficiency of the eutrophic lake water.

方法］以小瓜子、缎带椒、中柳、皇冠和西瓜草5种植物为试材，以北京市延庆县妫水湖8月份富营养化程度最高的湖水为植物生长基质，设高、中、低3个投放密度试验组，研究植物投放密度对富营养化湖水的修复效率影响；通过测定水样中总磷酸盐、总氮、氨氮和硝态氮的浓度变化，确定植物修复的最佳效率。

Aquatic plants were soaked in two purifying-tanks to investigate the effects of illumination intensity and aeration on diurnal variations of Chla,SP,POD of Pontederia cordata and pH,DO,COD,NH+4-N,TP of water from purifying-tanks when treating the malodorous river water at seven different times,another blank purifying-tank was set as a control. Comparative studies and correlation analysis of these different indicators were carried out to improve the plants working efficiency and provide scientific basis for optimal operation of plant purifying-tanks.

测定了曝气和非曝气的2个植物净化槽在1 d中7个不同时间点的出水水质理化指标(pH、DO、COD、NH+4-N、TP)及植物叶片的叶绿素、可溶性蛋白含量及过氧化物酶活性，另设空白槽为对照；试验目的是研究各指标的日变化情况及相互关系，为提高梭鱼草净化黑臭河水的处理效率及其植物净化槽的合理优化运行提供科学依据。

First, the ecological environment,"Fung city yuan and Egg Factory" location for local products Xiao Feng Tangxiang city, regional area of 39.7 square kilometers, of which 5,400 acres of water can be breeding in the region a mild climate, sunny, fertile land , Abundant rainfall, with the duck's natural climate and material resources, is the abundance of water birds city centre and the birthplace of farming, breeding birds Gaixiang is a pillar industry. Quanxiang the end of 2002 the number reached 420,000 duck feathers, rich in water resources and full of aquatic plants, Lo shrimp resources, to provide natural green duck feed, the duck has a long history of the formation of "a row of fruit, a pool Fish, a duck shed "three-dimensional ecological farming model," Feng city yuan and egg plant "to provide fresh, high-quality source of the eggs.

&丰城市元和蛋品分厂&土产所在地为丰城市筱塘乡，区域面积39.7平方公里，其中有可养殖水面5400亩，该地区气候温和，阳光充足，土地肥沃，雨量充沛，具备了养鸭的自然气候和物质资源，是丰城市水禽养殖的发源地和中心，水禽养殖是该乡的支柱产业。2002年底全乡养鸭数已达42万羽，丰富的水面资源中，富有水草、螺虾资源，为养鸭提供天然的绿色饲料，悠久的养鸭史形成了&一排果、一池鱼、一棚鸭&生态立体养殖模式，为&丰城市元和蛋品厂&提供新鲜、优质的蛋源。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐