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phloem

英 /ˈfləʊem/美 /ˈfloʊem/
  • n.
    （植）韧皮部；筛部

双语例句

  1. This had similar mercury levels to the phloem.
    树皮的汞含量与韧皮部相近。
  2. Primary phloem PHLOEM derived from the procambium in the young plant.
    初生韧皮部：指幼嫩植物中来源于原形成层的韧皮部。
  3. Phloem elements and adjacent tissues are the principal feeding sites for most aphids.
    韧皮部及其邻近组织是大多数蚜虫的主要取食部位。

网络短语

  • primary phloem
    初生韧皮部
  • phloem fiber
    韧皮纤维；韧皮部纤维
  • phloem ray
    韧皮射线；韧皮部射线；韧皮放射组织；韧皮髓线
  • secondary phloem
    次生韧皮部
  • phloem parenchyma
    韧皮薄壁细胞；韧皮薄壁组织；韧皮部薄壁组织

词义分布

韧皮部
80.9%
韧皮
19.1%

英英释义

  • n.(botany) tissue that conducts synthesized food substances (e.g., from leaves) to parts where needed; consists primarily of sieve tubes

词源

  • phloem
    首次出现：1872. 来自德语Phlöem, 来自古希腊语φλόος("husk, bark"), 来自φλέω("I abound")
  • phloem韧皮部（由筛管将叶制造的糖分输送到各部位的植物组织）
    来自德语phloem,韧皮部，由德国19世纪植物学家Karl Wilhelm根据希腊语创造出来的一个词，来自希腊语phloos,树皮。
  • phloem
    First attested in 1872. From German Phlöem, from Ancient Greek φλόος ‎(phlóos, “husk, bark”), from φλέω ‎(phléō, “I abound”)