For the reason why optical activity of mesomer is counteracted classical answer was not convincing. By use of the helix theory and stable staggered conformation answer can be obtained.

指消旋体消旋原因传统解释的不理性。利用螺旋理论和稳定的交叉式构象，理地解释消旋体消旋的原因。

For the reason why optical activity of mesomer is counteracted classical answer was not convincing. By use of the helix theory and stable staggered conformation answer can be obtained.

指出了内消旋体消旋原因传统释的不性。利用螺旋论和稳定的交叉，释了内消旋体消旋的原因。

For the reason why optical activity of mesomer is counteracted classical answer was not convincing. By use of the helix theory and stable staggered conformation answer can be obtained.

指出旋体旋原因传统解释不理性。利用螺旋理论和稳叉式构象，理地解释旋体旋原因。

For the reason why optical activity of mesomer is counteracted classical answer was not convincing. By use of the helix theory and stable staggered conformation answer can be obtained.

指出了内消旋体消旋原因传统解释的不理性。利用螺旋理论和稳定的交叉式构象，理地解释了内消旋体消旋的原因。

For the reason why optical activity of mesomer is counteracted classical answer was not convincing. By use of the helix theory and stable staggered conformation answer can be obtained.

指出了内消旋体消旋原因传统解释的不。利用螺旋论和稳定的交叉式构象，地解释了内消旋体消旋的原因。

For the reason why optical activity of mesomer is counteracted classical answer was not convincing. By use of the helix theory and stable staggered conformation answer can be obtained.

指出了内消旋体消旋原因传统不理。利用螺旋理论和稳定交叉式构象，理地了内消旋体消旋原因。

For the reason why optical activity of mesomer is counteracted classical answer was not convincing. By use of the helix theory and stable staggered conformation answer can be obtained.

指出了体原因传统解释不理性。利用螺理论和交叉式构象，理地解释了体原因。

For the reason why optical activity of mesomer is counteracted classical answer was not convincing. By use of the helix theory and stable staggered conformation answer can be obtained.

指出了内原因传统解释的不理性。利用螺理论的交叉式构象，理地解释了内的原因。

For the reason why optical activity of mesomer is counteracted classical answer was not convincing. By use of the helix theory and stable staggered conformation answer can be obtained.

指出了内消体消传统解释的不理性。利用螺理论和稳定的交叉式构象，理地解释了内消体消的。