1. ቀልጣፋ እና ፈጣን፡ ፈጣን፡ የፈተና ዙር ለመጨረስ 25 ደቂቃ፡ 2.Multiple items test፡ 3 chambers can simultaneously multiple groups of samples test to achieve many purpose test： 3.Flexible programs: simultaneous comparative test of
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