In BT partial structure factor, there is a first peak at 17.5 nm-1 in SCC(Q), indicative of CSRO. And this position is just where a prepeak appearing in the total structure factor.

• 从BT偏结构因子中我们也发现；表征化学序的SCC(Q)在17.；5nm-1左右处出现了第一峰；而这个峰位恰是总结构因子中出现预峰的峰位