试水膏 meaning in Chinese

water impermeability
water-finding paste

Water cream oil cream water cream water cream becomes red when meeting water
试水膏遇水后变红色
There are petroleum densimeter , petroleum meter , sampling cylinder , heat preservation box , 5m oil gauge , water ruler , water cream , 5m static rope , 5ml glass measurement cylinder and thermometer in the toolbox
由石油密度计石油计量表采样筒保温合5m量油尺量水尺试水膏5m量静电绳1000ml玻璃量筒温度计组成。