annular ductannular vesselring vesselringed vessel环: ring; hoop纹: lines; veins; grain导管: conduit; conduit pipe; draug ...横纹导管: trabecular vessel孔纹导管: pitted vessel下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:环纹导管，即可在微信中查询翻译
