hydromann.液压操作器hydron.水疗院；水力电pref.表示“水的”、“氢的”hydro-metallurgicaladj.湿法冶金的；水治的hydrological research水文研究hydrodynamic constant水力系数hydro-extract dryer脱水烘燥机hydrodynamic coupling液力联轴节hydropower asset loss水能资产流失hydrophilic electrode亲水电极hydrothermal deposits热液矿床hydrological analysis水文分析hydrotimetric burette水硬度滴定管