英语翻译
Theroughtitrationiscarriedoutfristtodeterminetheapproximateendpoint.Thetitrationisthenrepeatedmoreaccurately,withverycarefuladditionofsolitionfromburetteastheapproximateendpointisapproached.Twoconsisitenttritrationresultsaregotinthisway,agreeingwithin0.1cm^3.Themeanoftheaccuratetiresistakenasthefinalresult.
如果有打错一两个字的地方请见谅
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