详细解释:a. 中期
【医】 中期
英语解释：
名词 metaphase:
the second stage of meiosisthe second stage of mitosis详细解释：
met.a.phase
n.（名词）The stage of mitosis and meiosis, following prophase and preceding anaphase, during which the chromosomes are aligned along the metaphase plate.中期：细胞核的有丝分裂和减数分裂阶段，发生于前期之后和后期之前，在此期间内染色体在中期板平面上定向排列