恒温水槽 meaning in Chinese

thermostatic water bath
water tank with temp.-controlled

Soak specimen in warm after a specified time then observe whether specimen surface had degenerative conditions as blister , fadeaway , swell . … etc . to judge its quality and calculate the change rate of weight before / after test
恒温水槽：材料经本水槽一定时间之温水浸渍试验后，观察是否变质，表面有无起泡、褪色、膨胀等现象，以判暄品质，亦可计算试验前后之重量变化率。