两相邻轮的异常维管束由3-6层切向溥壁结合组织细胞分隔；

There are 3 to 6 layers of tangential conjunctive parenchyma tissue calls between two rings of anomalous bundles.

youdao

两相邻轮的异常维管束由3-6层切向溥壁结合组织细胞分隔；

There are 3 to 6 layers of tangential conjunctive parenchyma tissue calls between two rings of anomalous bundles.

youdao