duckweed的例句大全

Like the rootless duckweed , after floating and then joined to the sea.

就像那本无根的浮萍,漂浮之后终归大海.

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By contrast, what about duckweed, foam or a clay ox?

相反, 是浮萍, 是一堆泡沫或一头泥牛 呢 ?

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A kingfisher flashed across the water, the fish vanished, leaving the duckweed.

翠鸟象箭似的由水面上擦过去, 小鱼大鱼都不见了, 水上只剩下浮萍.

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There is a lot of red duckweed growing in the lake, causing a unique scene.

这片湖泊里生长着不少红萍, 形成了一道独特的风景.

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You must have put too much duckweed in the tank.

您一定在水箱内放了过多的水草.

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Paddy, fish, fruit, dish, duckweed the development of ecosystem.

稻 、 鱼 、 果 、 菜 、 萍生态系统的开发.

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Duckweeds float on ponds.

浮萍浮生在池塘中。

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He has drawn some lake-green duckweeds, which look quite natural.

他画了一些湖绿色的浮萍, 看起来很自然.

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First is Taiwanese writers' duckweed elegy.

首先，台湾旅美作家的浮萍悲歌。

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The results from livestock wastewater purification with floating and submerged macrophytes showed that the floating duckweed had better purification effect on wastewater and elimination rates were 43.83% for COD and 95.95% for total phosphorus.

在以浮水植物和沉水植物净化畜禽养殖废水时发现，浮水植物浮萍对养殖废水有很好的净化效果，其对COD去除率可达到43.83%，总磷的去除率达到95.95%。

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Research on Mechanism and Technological Conditions of Nitrogen-phosphorus Wastewater Treatment by Duckweed

利用浮萍净化氮磷污水机理及其优化工艺条件研究

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With three foreign optimal duckweed species as a reference, comparative experiments were conducted in the field of protein production capacity and freeze resistance capability of five local duckweed species in the Yangtze River delta area in the process of nitrogen-phosphorus wastewater purification.

以3种国外优化浮萍为参照，通过对比试验，对5种长江三角洲地区本地浮萍在净化氮磷污水过程中的蛋白质生产能力及耐寒能力进行了比较研究。

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With locally preponderant duckweed after selection and alternanthera philoxeroides cultivated in single species and accrete system, performance on removal efficiency of nitrogen and phosphorus in municipal wastewater and diluted anaerobically pretreated wastewater from a cattle farm were investigated.

以经筛选得到的本地优势浮萍和水花生为研究对象，通过设置浮萍、水花生单种和浮萍-水花生混养等三种体系，考察了其对生活污水和稀释的牛场厌氧废水N、P的净化效果。

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In the duckweed, high content of Pb was also observed.

而浮萍对Pb也有明显富集。

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Application of Duckweed on Water Pollution Treatment

浮萍在水污染治理中的应用研究

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Effect of Inorganic Nitrogen Compounds and pH on the Growth of Duckweed

pH及无机氮化合物对小浮萍生长的影响

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Growing conditions of five species of duckweed for nutrient-rich wastewater treatment

浮萍净化氮磷污水生长条件研究

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Effect of increasing production of rice by manuring green duckweed

绿萍对水稻的增产效果

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Study on Nitrogen Cycling and Transformations in a Duckweed Pond by Means of Modeling Analysis

浮萍塘中氮归趋模式模拟分析

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A New Kind of "Duckweed" Structure Monolayer and Its Langmuir-Blodgett Films

一种具有浮萍结构的单分子膜与Langmuir-Blodgett多层膜

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