1.
large scaup of North America having a greenish iridescence on the head of the male.
北美洲的大型斑背潜鸭，雄性的羽冠为偏绿的五彩色。
2.
Any of various birds, such as the scaup, with dark head markings.
黑头鸟一种以头部呈黑色为特征的鸟，如斑背潜鸭
3.
A North American wild duck(Aythya valisineria)having a reddish - brown head and neck and a whitish back.
帆布背潜鸭一种北美野鸭（帆背潜鸭），头颈呈红褐色，背呈浅白色
4.
North American goldeneye diving duck.
北美洲鹊鸭科潜水鸭。
5.
diving ducks of North America having a bluish-gray bill.
蓝灰色嘴的北美洲潜鸭。
6.
Any of various diving ducks of the genus Aythya, especially A.ferina of Europe and Asia, which has gray and black plumage and a reddish head.
潜鸭一种潜鸭属潜水鸭，尤指产于欧洲和亚洲的红头潜鸭，它有灰黑色的羽毛和浅红色的头
7.
any of various large diving ducks found along the seacoast: eider; scoter; merganser.
在海岸活动的各种大型潜水鸭；绒鸭；海番鸭；秋沙鸭。
8.
Either of two diving ducks(Bucephala clangula or B. islandica) of northern regions, having a short black bill, a rounded head, and yellow eyes.
鹊鸭一种潜鸭（鹊鸭或冰洲鹊鸭），生活于北方，黑短喙，圆头，黄眼
9.
A duck's back sheds water.
鸭子的背部不透水。
10.
mergansers and closely related diving birds.
秋沙鸭及与其关系较近的潜水鸟。
11.
large-headed swift-flying diving duck of arctic regions.
北极地区大头、飞行敏捷的潜水鸭。
12.
North American diving duck with a gray-and-black body and reddish-brown head.
北美洲的潜鸭，灰黑色身体和红褐色头。
13.
large black diving duck of northern parts of the northern hemisphere.
北半球北部地区的大型黑色潜水鸭。
14.
The leopard, especially in its black, unspotted form.
豹无斑点的豹，尤指黑背
15.
common North American diving duck considered a variety of the European goosander.
美洲普通潜水鸭，被认为是欧洲普通秋沙鸭的变种。
16.
Study of Occurrence Characferistics and Control Techniques of Liriomyza huidobrensis Blanchard and L.sativae Blanchard in Liangshan Prefecture;
凉山州南美斑潜蝇、美洲斑潜蝇发生特点及防治技术研究
17.
Studies on the Detection for Duck Hepatitis Virus by Dot Immuno-gold Filtration Assay
斑点免疫金渗滤法检测鸭肝炎病毒的研究
18.
Growth characteristics and culture pattern of Siniperca scherzeri Steindachner cultured in cage
网箱养殖的鸭绿江斑鳜生长特性及饲养模式