According to the study of determination of molybdenum in compound micro-fertilizer by means of mix indicator technique, it was found that change of terminal colour of titration is clear.
研究了混合指示剂法对复合微肥中钼的测定，测定终点颜色变化明显。
2
Compound structure of safety - increased type, with functions of water - proofing, dust-proofing inside is arranged button, indicator, Ammeter of explosion-proof types.