1.
THE CAUSES OF EXTINCTION OF CHINESE RIVER DOLPHIN S META POPULATION AND PROTECTIVE MEASURES;
白鳍豚Meta种群灭绝原因及保护措施
2.
Extinction risk and population viability analysis of wild Pere David's deer
野放麋鹿种群灭绝风险与生存力分析
3.
The Exsistence and Extinction of a Kind of General Logistic Population;
一类广义Logistic种群的持续生存和灭绝
4.
Study on the Permanence and Extinction of Several Population Dynamic Systems;
几类种群动力学模型持久性和绝灭性的研究
5.
Persistence and Extinction in Nonautonomous Multi-species Kolmogorov System with Delay
非自治多种群时滞Kolmogorov系统的持续性和灭绝性
6.
Climate warming brings about extinction tendency in wild population of Cymbidium sinense
气候变暖致使墨兰(Cymbidium sinense)野外种群趋向灭绝
7.
Weakly persistence in the mean and extinction of Logistic single population with harvesting in a polluted environment
污染环境中具有捕获的Logistic单种群的弱平均持续生存与绝灭
8.
walruses and extinct forms.
海象及其它灭绝种类。
9.
This kind of animal is in danger of becoming extinct.
这种动物有灭绝的危险。
10.
This species was doomed to extinction.
这一种类注定要灭绝。
11.
The race was threatened with extinction.
这种族有灭绝之虞。
12.
a species threatened by/with extinction
有灭绝之虞的物种.
13.
The species was being degraded.
混种将导致野火鸡灭绝；
14.
constituted by the extinct solitaire.
由已灭绝的单一种构成。
15.
pikas and extinct forms.
鼠兔及其灭绝的种类。
16.
gregarious North American migratory pigeon now extinct.
北美洲群居的迁移鸽子，现已灭绝。
17.
The systematic and planned extermination of an entire national, racial, political, or ethnic group.
种族屠杀有组织地、蓄意地进行的对整个国家、种族、政治或文化群体的灭绝
18.
A species can become endangered for different reasons.
一种生物濒于灭绝有多种原因。