您要查找的是不是：
- soil core (原状土) 土样
- stony soil (碎石土) 多石土壤
- soil pit (观察土壤剖面用) 土坑
- soil processing (试验时) 土壤制备
- soil block test (木林防腐) 土壤木块试验
- 草原生态系统 Grassland ecosystem
- soft soil performance (车辆) 软土通过性能
- 格陵兰地区的植物生态 the botany of Greenland
- soil burial test (纺织品耐腐性试验) 土埋试验
- 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.
- 将earth、 ground、 floor、 soil这几个词作一比较. Compare earth, ground, floor and soil.
- 有生态意识的 ecologically aware
- soil primary shear surface (与机具前进方向平行的) 土壤主剪切面
- 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
