observation 隐藏摘要  |
 | 观察 |
| objective 物镜 observation 观察 Oersted's experiment 奥斯特实验 | |
| http://nsit.thea.cn/cs/learning/2007-10-26/15422-1.htm - 基于432个网页 |
| 观测 |
| obsequent valley 逆向谷 observation 观测 observation base 观测基线 | |
| http://www.xi-gao.com/vocabulary/geography-n-o.htm - 基于195个网页 |
| 观察法 |
| objectives 具体目标 observation 观察法 occupancy costs 房屋占用成本 | |
| http://treasure.1x1y.com.cn/useracticles/20071119/20071119103932401.html - 基于79个网页 |
| 观察，检查，监视 |
| observation 观察，检查，监视 | |
| http://www.eforce.cn/art/Article/Class1/Class13/200506/3791.html - 基于56个网页 |
| 相关词条 |
observation port  |
| observation well |
| observation point |
| field observation |