第二步，在金属钾催化条件下，使第一步产物缩水甘油醚发生开环加成反应生成双子表面活性剂的中间体低聚二醇。
The second step, the digomeric glycol-intermediate product of Gemini. surfactant was prepared by opening ring reaction of glycide ether in the presence of potassium as catalyst.
可以成双增加三角体的数量或改变平面三角的底高比例，使玩具形状和翻转发生变化。
The quantity of the triangle can be improved in pair or the bottom-height ratio of the flat triangle can be changed, so as to change the shape and the reversal of the toy.
泥浆侵入带的存在除了造成双侧向曲线明显的正幅度差外，还使裂缝倾角和夹角的影响变模糊。
The existence of mud invasion leads to positive difference on dual laterolog, and makes the effect of dip and angle vaguer.
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