| understory management |
下木栽植 |
| understory management |
林下栽種 |
| understory management |
樹下栽植 |
| understory plants |
下層林木 |
| understory; underwood; undergrowth |
下層林 |
| understory; underwood; undergrowth |
下層植生 |
| Underwater acoustics |
水聲學 |
| Underwater biology |
水中生物學 |
| Underwater cable |
水下電纜 |
| Underwater television |
水下電視 |
| Underwriter |
承銷機構 |
| uniform distribution |
均勻分布 |
| uniform flow |
等速流 |
| uniform shelterwood system |
大面積傘伐作業 |
| Uniform supervision in agricultural finance |
農業金融監理一元化 |
| Uniformity |
整齊度 |
| Uniformity |
一致性 |
| unit hydrograph |
單位歷線 |
| unit stream power |
單位河川功率 |
| United Nation Forum on Forest |
聯合國森林論壇 |
