“轴丝”的拼音为：zhóu sī...

孢子萌发后直接产生块状原丝体;块状原丝体上产生轴丝体 、 绿丝体和次生假根.The production of massive protonema immediately follows and then caulonema, chloronema and secondary rhizoides....

“轴丝”的英语可以翻译为：axial filament，[无脊椎] axoneme ...