单词 | Water lettuce |
例句 | 1 The long roots of Water Lettuce provide shelter for fish and fry. 2 This paper has reported the new technique of distilling sodium zinc chlorophyllin from water lettuce leaves. It is based on orthogonal experiment that the optimizing reaction conditions. 3 The paper provides the theoretical basis for protecting and harnessing the ecological environment of Wanfeng lake by analyzing the reason of water lettuce pollution. 4 Accumulation of pirimicarb in sludge, grass carp, duckweed and water lettuce increased with time. In the meantime, concentration of pirimicarb in aquatic phase decreased continuously. 5 This paper has reported the new technique of distilling sodium zinc chlorophyllin from water lettuce leaves. |
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