临界胶团浓度
参考答案：
将表面活性剂在非极性有机溶剂相中能形成反胶团的最小浓度称为临界胶团浓度，它与表面活性剂种类有关。
—The classroom is clean it was yesterday.
—Sorry, I forgot to clean it.
A．as, as
B．so, as
C．not as, as
D．more, than
滚珠螺纹丝杠双螺母齿差预紧机构可以削除间隙并施以预紧力，实现滚珠螺纹丝杠的精密传动。
