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使用DCAT21表面张力仪的挂片法测定液体表面张力。讨论了待测溶液配制后的时间因素对液体表面张力测定值的影响。
Liquid surface tension was measured using the coupon method of a DCAT21 surface tension meter. The influence of the time factor of the solution to be measured on the measured value of the liquid surface tension is discussed.