ashing stage

• 灰化阶段

ashing stage的用法和样例：

例句

1. During the foam stage of archegonium, the wall between the jacket cells and the central cells became fairly thick and the plasmodesmata present at the thinner area.
   在颈卵器发育的泡沫化阶段，套细胞和中央细胞的接触壁不均匀加厚较为显著，在较薄的区域可见胞间连丝。