1.
Analysis of effect of a doption of fries by filling with river flows on water quality and sediment of Tianezhou wetland
浅析灌江纳苗对天鹅洲湿地水质及泥沙的影响
2.
Evaluation of Tourism Resource in Swan Island Wetland;
湖北石首天鹅洲湿地旅游资源评价研究
3.
Integrative Evaluation of Wetlands Tourist Resource in Swan Island at Shishou , Hubei Province;
湖北石首天鹅洲湿地旅游资源综合评价
4.
Investigation on Animals in the Natural Preserve of David Deer in Swan Islet Wetland;
天鹅洲湿地麋鹿自然保护区动物资源调查
5.
Wetland Resource Protection and Ecotourism Development of Swan Island in Shishou City
石首市天鹅洲湿地资源保护与生态旅游开发
6.
Study on Dynamics of CO_2 Flux in Swan Islet Wetland and Effects of Environmental Factors;
天鹅洲湿地生态系统CO_2通量动态变化及其影响因子评价
7.
Investigation of Aquatic Ecology and Researches on the Emergy Analysis of Tian'e-zhou and Hei-wa-wu Oxbows of the Yangtze River;
天鹅洲、黑瓦屋长江故道湿地水生态调查及能值分析研究
8.
Lagoonal wetland flora in whooper swan (Cygnus cygnus) nature reserve in Rongcheng of Shandong
荣成大天鹅自然保护区泻湖湿地植物区系
9.
Phosphorus Adsorption Characteristics of Sediments and Its Influencing Factors in Rongcheng Swan Lake Wetland
荣成天鹅湖湿地沉积物对磷的吸附特征及影响因子分析
10.
Analysis on the Protective Exploitation of Eco-tourism in Sanmenxia Swan Lake National Wetland Park
论三门峡天鹅湖国家级湿地公园生态旅游保护性开发
11.
velvety turf
柔软如天鹅绒的草地
12.
Swans are surprisingly awkward on land.
天鹅在陆地上笨得出奇.
13.
WINTER HABITAT OF CYGNUS CYGNUS--A PRELIMINARY REPORT ON INVESTIGATION OF THE SWAN LAKES IN RONGCHENG
大天鹅的越冬栖息地——荣成天鹅湖调查初报
14.
Protective Strategy of Eco-tourism Resources in Lake-wetland;
湖泊类湿地生态旅游资源保护对策——以广东连山天鹅湖自然保护区为例
15.
Efforts are under way to restore the species to its traditional range covering most of North America.
人们正在想方设法使这些野天鹅种群回到传统的栖息之地——北美洲大部分地区。
16.
The brightest star in the constellation Cygnus, approximately1, 630light - years from Earth.
天津四,天鹅α星在天鹅座最亮的一颗恒星,距地球大约有1,630光年
17.
large pure white wild swan of western North America having a sonorous cry.
叫声洪亮的北美洲西部大型纯种野生白天鹅。
18.
North American subspecies of tundra swan having a soft whistling note.
冻原天鹅的北美洲亚种,以其柔和的鸣叫著名。