duckweed

英 [ˈdʌkwiːd]

美 [ˈdʌkwiːd]

n.  浮萍

COCA.40164

牛津词典

noun

• 浮萍
  a very small plant that grows on the surface of still water

英英释义

noun

• any small or minute aquatic plant of the family Lemnaceae that float on or near the surface of shallow ponds

双语例句

• Effect of paraquat and cadmium on some physiological indices of duckweed under different degree eutrophication
  不同富营养化程度下Cd和百草枯对浮萍部分生理指标的影响
• In the duckweed, high content of Pb was also observed.
  而浮萍对Pb也有明显富集。
• The salvage of duckweed increased the purifying capacity.
  打捞可提高浮萍净化水体的能力。
• Compared with the single pollution, the eco-toxicity of compound pollution of As+ Cd and Cu+ Cd becomes stronger, which presents a synergistic effect, as far as the lethal concentration to the cell of duckweed's lamina is concerned;
  与单一污染相比，As+Cd和Cu+Cd复合污染对浮萍叶绿素毒性增强，表现为协同作用，加强了对浮萍叶细胞的伤害；
• Duckweed and alternanthera philoxeroides can be cultivated together to provide an accrete system for significant and stable removal of pollutants under high organic pollution.
  当水体有机污染程度较高时，可通过将浮萍和水花生混养，建立共生系统，以高效、稳定地去除污染物。
• Mist, dust and rain beat the duckweed.
  雾霭尘埃雨打萍；
• 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
• First is Taiwanese writers 'duckweed elegy.
  首先，台湾旅美作家的浮萍悲歌。
• The absorption capability to ammonia of duckweed is stronger than to nitrate.
  青萍对氨氮的吸收利用能力高于对硝态氮的吸收利用能力。
• Duckweed population grows rapidly and removes the nutrients mainly by biomass increasing.
  浮萍种群增长能力极强，主要通过生物量的增长实现对氮磷营养的吸收去除。