hydromann.液压操作器hydron.水疗院；水力电pref.表示“水的”、“氢的”hydrologic monitoring水文监测hydroxyethyl guar gum对甲苯磺酸-乙酸酐Hydrophytic ecosystem水生生态系统hydroxy cholanic acid羟基胆烷酸hydrophytes harvester水草收割机hydroxy succinic acid羟基琥珀酸hydrokinetic pressure流体动力压力hydrogeologic feature水文地质特征hydroxyesterification羟酯化(作用)hydrophilic component亲水成分