基本解釋[農業(yè)科學]家鴨英漢例句雙語例句A wild duck(Anas platyrhynchos)of which the male has a green head and neck. Most domestic ducks descend from the mallard.綠頭鴨一種野鴨(綠頭鴨),其雄鳥具有綠色的頭和頸。大部分馴化了的家鴨都是綠頭鴨的后裔。The mallards were once kept to hybrid many forms of domestic ducks, such as Peking duck in China, duck head duck in Italy, and green head duck in Japan.綠頭鴨曾被人利用飼育馴養(yǎng)而改良成各種的家鴨品種如中國的北京鴨、意大利的黑頭鴨及日本的青頭鴨等。Liang Tan River pollution is mainly farming wastewater, domestic sewage and so on, 40% of them is duck droppings pollution, the integrated control of beach River focused on duck pollution .梁灘河污染主要為養(yǎng)殖污水、生活污水等,而其中鴨糞隨意排放引起的污染占40%。domestic duck更多例句詞組短語短語domestic c duck feather 家鴨羽毛domestic c duck flank plumage 白花毛domestic duck feather 家鴨羽毛domestic duck flank plumage 白花毛Chinese domestic duck 中國家鴨domestic duck更多詞組專業(yè)釋義農業(yè)科學家鴨Domestic duck is still the most prone to mixed infections,and H6subtypes played the main role,H3and H9were the other main mixed infection subtypes,providing agood carrier to generate a new subtype and virulence variation.家鴨還很最容易發(fā)生混合感染,并以H6亞型為主,很多亞型都可與其混合感染,尤其是H3、H9亞型,這為基因重組產生新的亞型及毒力的變異提供了好的載體。