“bundle sheath”寫句子,用bundle sheath造句
2017-12-16
Thevascularbundleconsistsofvascularbundlesheath,xylem,phloemandbigparenchymatouscells.Palisadetissueisrichinsaliferousvacuoles,whilevascularbundlesheathisobvious.Thereare2-3layersoflong-column-shapedp...