您要查找的是不是：
- strata succession (指地层的) 层序
- =five games in succession, five games running)(连续的五场比赛)校队连续获得五场比赛的胜利。 The school team won five successive games
- 草原生态系统 Grassland ecosystem
- 格陵兰地区的植物生态 the botany of Greenland
- 五、奥运建设生态环境保护 Specific Environmental and Ecological Protection Measures for Olympic Games
- 区域生态系统脆弱。 The regional ecological system is fragile.
- 有生态意识的 ecologically aware
- 草原生态 steppe ecology
- 生态模拟 ecological simulation
- 家畜生态 livestock ecology
- 淡水生态 freshwater ecology
- 沼泽生态 wetland ecology
- 盐度生态 ecology of salinity
- 山地生态 montane ecology
- 微生物生态 microbial ecology
- 生态螯合(作用) ecology chelation
- 保护性生态系统 protective ecosystem
- 北极生态系统 arctic ecosystem
- 生态环境保护和建设力度加大。 Efforts were intensified to conserve and improve the ecological environment.
- 保护性质生态系统 protective eco system
