trihydric
1. trihydric acid
三价酸
2. trihydric phenol
三元酚
3. trihydric alcohol
三元醇
4. trihydric salt
三酸式盐
5. Entertainment Technology - Theatrical Fog Made with Aqueous Solutions of Di- and Trihydric Alcohols
娱乐业技术。二和三醇水溶液制成的舞台背景用雾