| 单词 | cambium |
| 释义 | cambium noun[CorU] biologyspecializeduk/ˈkæm.bi.əm/us/ˈkæm.bi.əm/pluralcambiumsorcambiauk/ˈkæm.bi.ə/us/ˈkæm.bi.ə/alayerofcellsin therootsandstemsof someplantsthatdividetoproducenewtissue, such asxylemandphloem 形成层（木本植物根部和茎部的细胞层，其通过细胞分裂形成新的木质部和韧皮部）Parts of plants
cambium| American Dictionarycambium noun[U] us/ˈkæm·bi·əm/biology thelayerofgrowingtissuebetween thebark(=outercovering)and thewoodof atreethatproducesnewbarkandwood Examplesofcambiumcambium The term bark is used here to refer collectively to vascularcambium, phloem, cortex and periderm. From theCambridge English Corpus Trees were classed as dead if they were leafless and with a complete ring of deadcambiumat breast height. From theCambridge English Corpus Furthermore, we investigated the relationship between vegetative phenology andcambiumgrowth. From theCambridge English Corpus Recently broken branch stumps were defined as those without shed bark or signs ofcambiumcallus growth around the branch stump base. From theCambridge English Corpus Cells differentiated in the vertical axis in a manner similar to that of the fusiform initials of the vascularcambium. From theCambridge English Corpus Once the bark has dried to below 55% moisture content, larval penetration to thecambiumand survival is greatly improved. From theCambridge English Corpus For each stem, the amount of bark (referring collectively to vascularcambium, phloem, cortex and epidermis) eaten by each weevil was measured after removing surface resin as described below. From theCambridge English Corpus Tree death was determined by an absence of foliage and lack of sap in thecambium. From theCambridge English Corpus They bore into thecambiumof the trunk, branches, and twigs of their host plant. From Wikipedia  This example is from Wikipedia and may be reused under a CC BY-SA license.The inner barkcambiumand phloem tissues are living, and form a new protective layer of cells as the outer bark pulls apart. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.The function of corkcambiumis to produce the cork, a tough protective material. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.The plant has a large central medulla and a single vascular bundle containing the xylem, phloem andcambium. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.They bore in thecambiumunder the bark of the host plant, producing pitch masses on the trunk. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.The corkcambiumgives rise to thickened cork cells to protect the surface of the plant and reduce water loss. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Inside the phloem is a layer of undifferentiated cells one cell thick called the vascularcambiumlayer. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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