n. 【植】管胞
[网络] 假导管;管胞细胞

tracheids的用法和样例:

例句

  1. The xylem of ferns only contains tracheids.蕨类植物的木质部只含有管胞。
  2. It is found in protoxylem and first metaxylem tracheids and vessels.可在原生木质部和初始后生木质部的管胞和导管中见到。

标准英语,VOA,trach,successful,Israel,By Robert Berger Jerusalem 15 January 2006 Ariel Sharon (file photo) Israeli Prime Minister Ariel Sharon underwent a tracheotomy Sunday, 11 days after his massive stroke. Doctors are worried. --------

发表于:2019-02-05 / 阅读(339) / 评论(0) 分类 2006年VOA标准英语(一月)
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