英语词汇primary phloem怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词

primary phloem

释义

primary phloem

简明释义

[植] 初生韧皮部

网络释义

1
[植]?初生韧皮部
初生韧皮部(primary phloem)：其主要功能是输导有机物质。初生韧皮部形成若干束分布于初生木质部辐射角之间，与初生木质部相间排列，这是幼根维管柱中最为突...

短语

1
primary phloem fiber
植初生韧皮纤维
2
primary bastprimary phloem
初生韧皮部

双语例句

1
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。
2
Secondary structure occurs in the root hair zone, and vascular cambium is formed from the parenchyma cells between the primary xylem and primary phloem;
次生结构发生于根毛区，维管形成层由初生木质部和初生韧皮部之间的薄壁细胞转化形成；
3
Between primary xylem and primary phloem there are 2-3 layers of parenchymatous cells, regularly or irregularly arranged, but no cambial zone can be recognized.
初生木质部与初生韧皮部之间可见到2—3层排列规则或不规则的薄壁组织细胞，但是没有维管形成层的发生。

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单词	primary phloem
释义	primary phloem 简明释义 [植] 初生韧皮部网络释义 1 [植]?初生韧皮部初生韧皮部(primary phloem)：其主要功能是输导有机物质。初生韧皮部形成若干束分布于初生木质部辐射角之间，与初生木质部相间排列，这是幼根维管柱中最为突... 短语 1 primary phloem fiber 植初生韧皮纤维 2 primary bastprimary phloem 初生韧皮部双语例句 1 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。 2 Secondary structure occurs in the root hair zone, and vascular cambium is formed from the parenchyma cells between the primary xylem and primary phloem; 次生结构发生于根毛区，维管形成层由初生木质部和初生韧皮部之间的薄壁细胞转化形成； 3 Between primary xylem and primary phloem there are 2-3 layers of parenchymatous cells, regularly or irregularly arranged, but no cambial zone can be recognized. 初生木质部与初生韧皮部之间可见到2—3层排列规则或不规则的薄壁组织细胞，但是没有维管形成层的发生。
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