Torus (pl.tori) A disk-shaped structure formed from lignified primary cell-wall material on the middle lamella of a bordered pit.是什么意思_Torus (pl.tori) A disk-shaped structure formed from lignified primary cell-wall material on the middle lamella of a bordered pit.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句