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核桃枝条酚类物质变化与枝条适应性研究 关键词 核桃韧皮部 木质部 多酚 多酚氧化酶 抗性 [gap=887]Key words Walnut shoot phloem，Xylem，Phenolics，Polyphenoloxidase(PPo)，Anti。cold
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primary xylem [植] 初生木质部 ; 原生木质部
xylem parenchyma [植] 木薄壁组织 ; [植] 木质部薄壁组织 ; 木薄壁细胞 ; 木质部薄壁细胞
secondary xylem 次生木质部 ; 次生木质
xylem fiber 木质纤维 ; 木纤维
xylem ray [植] 木射线 ; 木质部射线
xylem sap 木质部汁液 ; 通过木质部液
xylem fibre 木纤维
xylem cell 木质细胞 ; 木质部细胞
xylem vessel 木质导管 ; [植] 木质部导管
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木质部 - 引用次数：203
There were well-developed vessels and fibers in the sec-ondary xylem.
次生木质部中导管和纤维发达,导管分布密度较大。
参考来源 - 卵叶远志营养器官的结构及远志皂苷的组织化学定位和含量测定 -
木质部 - 引用次数：55
Glenea cantor overwintered with larvae in the phloem and the xylem of damaged-wood.
明确了该天牛以幼虫在受害木韧皮部、木质部内过冬，幼虫没有真正的越冬现象。
参考来源 - 南宁市园林天牛群落结构及眉斑楔天牛生物生态学特性研究本质部木部
·2,447,543篇论文数据，部分数据来源于NoteExpress
xylem [ 'zailəm, -lem ]
- n. the woody part of plants: the supporting and water-conducting tissue, consisting primarily of tracheids and vessels
以上来源于: WordNet
柯林斯英汉双解大词典
xylem /ˈzaɪləm, -lɛm/
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1.
N a plant tissue that conducts water and mineral salts from the roots to all other parts, provides mechanical support, and forms the wood of trees and shrubs. It is of two types (protoxylem and metaxylem), both of which are made up mainly of vessels and tracheids 木质部 → see also protoxylem, metaxylem
双语例句权威例句
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The xylem of ferns and conifers contains only tracheids.
蕨类植物和针叶树的木质部仅含有管胞。
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Roads, railways, water and gas mains, sewage pipes and electricity cables all move things around. So do the blood vessels of animals and the sap-carrying xylem and phloem of plants.
他的观点是，在某种程度上二者均由运输物质的网络构成——公路，铁路，水路以及煤气管，污水管还有电缆线都在输送物质，动物血管和植物运输汁液的木质部、韧皮部也是如此。
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It is a lateral meristem and contains fusiform initials giving rise to secondary xylem and phloem and ray initials giving rise to medullary rays. See also secondary growth.
维管形成层属于侧生分生组织，包括能够产生次生木质部与次生韧皮部的纺锤状形成层原始细胞和产生髓射线的射线原始细胞。
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