A transparent and homogeneous sample solution was obtained by dissolving the surfactant of sodium salt in HNO3 (1 + 1) -op solution upon heating.
在加热下用硝酸(1 + 1)- OP溶液溶解钠盐表面活性剂样品，配制成均匀透明的样品溶液。
Place the gauge on a horizontal, flat , non-slip surface . Stir the sample homogeneous with small palette knife , and the pour sufficient liquid into the deep end of the gauge channel.
将刮板放置在水平的平面上，用小调漆刀将待测样品搅拌均匀，然后在沟槽最深部分滴入试样数滴，以能充满沟槽而略有余为好。
Place the gauge on a horizontal, flat , non-slip surface . Stir the sample homogeneous with small palette knife , and the pour sufficient liquid into the deep end of the gauge channel.
将刮板放置在水平的平面上，用小调漆刀将待测样品搅拌均匀，然后在沟槽最深部分滴入试样数滴，以能充满沟槽而略有余为好。
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