| Ultra low volume (ULV) spray |
超低容量施藥 |
| Ultrasonic |
超聲波 |
| Ultrasonic thawing |
超聲波解凍 |
| ultrasonic water level meter |
超音波水位計 |
| Ultrasonic wave |
超聲波 |
| Ultrastructural study |
超微結構研究 |
| Ultrastructure |
超微結構 |
| Ultraviolet ray |
紫外線 |
| Ulva |
石純 |
| Umeboshi |
日本梅干 |
| umeboshi / Japanese salt plums / salt plums / fermented plums |
日本梅干 |
| unacceptable risk |
不可接受風險 |
| uncertainty |
不確定性 |
| unconfined groundwater |
自由地下水 |
| Undaria pinnatifida |
裙帶菜 |
| Under-forest economy |
林下經濟 |
| underbrush; understory; underwood; undergrowth |
下木 |
| underdrain |
暗渠 |
| underground cutoff wall |
地下截水牆 |
| underground water drainage works |
地下排水工程 |
