詞語:protoxylem
protoxylem的解釋
protoxylem[,prəutə'zailəm]n. [植]原生木質部
protoxylem的意思
protoxylem 原生木質部;初生木質部;原始木質部;先成木質部;endarch protoxylem 內源型先成木質部;protoxylem cavity 先成木質部腔;
protoxylem的參考例句
1.It consists of the protoxylem (formed first) and metaxylem. 包括原生木質部(最早形成的)和後生木質部。
2.It is found in protoxylem and first metaxylem tracheids and vessels. 可在原生木質部和初始後生木質部的管胞和導管中見到。
3.Annular thickening Rings of thickening laid down on the inner wall of protoxylem vessels and tracheids. 原生木質部導管和管胞的內層環狀增厚。