当这些聚体达到一定体积时,内部的细胞变成木质化.When the aggregates reached a certain size the inner cells became lignified.木质化足以使细胞变硬和增强.This lignification serves to stiffen and strengthen the cells.细胞壁多发生木质化而次生加厚.The cell wall has undergone s...

“木质化”的英语可以翻译为：[化] lignification，lignifying，lignify ...