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The results show as follows:(1) Elodea nattalii and Hydrilla verticillata have strong capacity of purification on nitrogen and phosphorus , etc.

在实验室条件下。对伊乐藻及轮叶黑藻净化养鱼污水的能力进行了比较研究。

The theoretical analysis and experiments are made to prove the dynamic vibrations produced by the lugs of a paddle wheel and the wave equation is proposed.

由理论分析和试验证明了桨式叶轮的推力和运动的波动性受轮叶数N的影响,并提出了力和运动的波动方程。

Treated with 3 kinds of cultivation medium s:peat,moss and soil,adaptability of Thalia dealbata,Pontederia cordata,Iris sanguinea and Hydrocotyle verticillata were compared.

结果表明:3种处理下,再力花、海寿花和轮叶石胡荽的植株地上部、地下部生物量均以地栽处理最高,植株根冠比均以地栽处理最低;溪荪在3种处理下的适应性没有表现出明显差异;4种植物在3个处理下的根系活跃吸收面积率变化趋势相似,基本在40%~50%波动,没有明显差异;4种植物在泥炭栽培和水苔藓栽培基质下都有一定的适应性。

To compare adenophora retraphlla with Adenophora stricra in their composition of saponin and amino acid.

轮叶沙参和沙参进行了皂甙及氨基酸成分的比较研究。

Adenophora tetraphylla is better in quality than Adenophora stricta.

初步证实轮叶沙参的品质要优于沙参

Adenophora tetraphylla ; Adenophora stricta ; saponin ; amino acid ; composition analysis

轮叶沙参;沙参;皂甙;氨基酸;成分分析

Of Campanulaceae, widely distribute in this locality.

轮叶党参Codonopsis Lanceolata Benth.et Hook.F。

The effects of different nutritional condition on the growth and antioxidant enzyme activity of submerged macrophytes Myriophyllum spicatum L, Hydrilla verticillata L and Ceratophyllum demersum L. were investigated in this study.

模拟研究了沉水植物狐尾藻Myriophyllum spicatum L、轮叶黑藻Hydrilla verticillata L和金鱼藻Ceratophyllum demersum L在中、富两种营养水平下的生长及生理特性。

The results showed that during the 45 days experimental time the fresh weigh of Myriophyllum spicatum L, Hydrilla verticillata L and Cerato-phyllum demersum L were 0.92 g, 0.27 g, 1.11 g and 0.56 g, 0.41 g, 0.87 g in medium nutritional condition TN 1.86 mgL^(-1; TP0.087 mgL^(-1) and eutrophic condition TN 2.47 mgL^(-1; TP0.16 mgL^(-1), respectively. The largest single plant biomass of Myrio-phyllum spicatum L and Ceratophyllum demersum L in in middle nutritional condition were over 39% and 22% higher than those in eutrophicated condition, but that of Hydrilla verticillata L was less than 51%, which shown that Myriophyllum spicatum L and Ceratophyllum demersum L grow better than Hydrilla verticillata L in middle nutritional condition.

研究结果表明,在45 d的培养过程中,狐尾藻、轮叶黑藻和金鱼藻在中营养TN1.86 mgL^(-1; TP0.087 mgL^(-1)和富营养TN2.47 mgL^(-1; TP0.16 mgL^(-1)水平下的单株最大生物量分别是0.92、0.27、1.11、0.56、0.41和0.87 g,狐尾藻和金鱼藻在中营养水平下单株最大生物量分别较富营养水平下高出39%和22%,而黑藻在中营养水平下单株最大生物量较富营养水平下低了51%,表明狐尾藻和金鱼藻在中营养水平下的生长较黑藻好。

Petals broadly obovate,(7-)8-9(-10)×(3.5-)4.5-6 mm; seeds foveolate; sepals caducous, margin ciliolate; septum absent

verticillatum 轮叶沟子荠

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推荐网络例句

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性,但我大喊,并在他们的方向扔石头让他们过的线索,远离我,以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。

Store this product in a sealed, lightproof, dry and cool place.

密封,遮光,置阴凉干燥处。