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Any of various large aquatic birds of the family Anatidae chiefly of the genera Cygnus and Olor, having webbed feet, a long slender neck, and usually white plumage.

天鹅：鸭科的各种大型水禽，主要是天鹅和哑天鹅属，有蹼足、长而细的脖子和通常为白色的羽毛

Swan cry Any of various large aquatic birds of the family Anatidae chiefly of the genera Cygnus and Olor, having webbed feet, a long slender neck, and usually white plumage.

天鹅：鸭科的各种大型水禽，主要是天鹅和哑天鹅属，有蹼足、长而细的脖子和通常为白色的羽毛

Family of perennial aromatic herbs: genera Saururus; Anemopsis; Houttuynia.

多年生具有芳香的草本植物科；三白草属；假银莲花属。

Non-special primers were designed on the CO Ⅱ genes of Odonata. CO Ⅱ complete genes of 6 genera, including 8 species of 5 families in Anisoptera, had been sequenced and analyzed.

方法］设计蜻蜓目昆虫CO Ⅱ全基因的非特异性引物，获得差翅亚目5科6属8种共8条CO Ⅱ全序列。

ABSTRACT: Goniothalamus cheliensis and Uvaria macrophylla belong to the genera Goniothalamus and Uvaria of the family Annonaceae respectively.

景洪哥纳香和大叶紫玉盘分别是蕃荔枝科哥纳香属和紫玉盘属植物，广泛分布于我国南部的海南、广东、广西、云南等省。

Any of several freshwater bivalve mollusks of the genera Anodonta and Unio, found in the central United States, that burrow in the sand or mud of lakes and streams.

淡水蚌发现于美国中部的无齿贝属和珠蚌属几种淡水双壳软体动物的一种，在湖和河中的沙中或泥中挖洞

In Gansu, there are 32 species belonging to 16 genera, 6 families of Anura, which are dominant in numbers.

甘肃无尾两栖类动物共有6科、16属、32种和亚种，在两栖动物中占绝对优势。

Five species belonged to five genera were extracted from soil samples which were Helicotylenchus digonicus, Tylenchorhynchus maximus, Psilenchus hilarulus, Filenchus vulgaris and Aphelenchus avenae. Except A.

结果表明：从洋葱根际土壤样品中共分离鉴定出线虫5个属5个种，包括喜悦平滑垫刃线虫、普通丝尾垫刃线虫、双角螺旋线虫、最大矮化线虫和燕麦真滑刃线虫。

In this study, we investigated the phylogenetic relationships of Chinese Apiaceae subfamily Apioideae, while ascertain or confirm the phylogenetic placements of all ten Chinese endemic genera by means of morphology, cytology and molecular systematics.

本研究综合形态学、细胞学和分子系统学等多学科的手段和方法，以中国芹亚科为重点研究对象，集中探讨中国芹亚科类群的系统演化关系同时确立中国伞形科10个特有属的系统学位置。

Biogeography: according to the distribution and phylogenetic placement of endemic genera, Yunnan and SichuanProvinces of KangdianAncientLand are probable the secondary evolutionary centers for Chinese Apiaceae.

根据各特有属在伞形科中的系统学位置以及地理分布状况，我们推测，地处康滇古陆的云南和四川很可能是中国伞形科植物的次生演化中心。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。