01.プリセット曲線
計器は60種類の事前プログラミング設定方法の曲線を内蔵し、そのうち33種類の直読可能濃度、COD、重金属、栄養塩などのパラメータを含む
60 kinds of high-definition equipment built preprogrammed settings。Curve a good way, in which 33 kinds can be directly read the concentration。Degrees, including COD, heavy metals and nutrients, etc.parameter