1.【植】形成层,新生层
1.a cylindrical layer of cells in plant roots and stems that produces the new tissue responsible for increased girth, particularly sap-conducting tissues, xylem and phloem, and bark
1.The incision must be deep enough to penetrate the secondary cambium, where the secretary canals lie.
切口必须足够深穿透二手层，那里局长运河之所在。
2.One must be able to differentiate between cambium and heartwood when buying furniture.
家具的时候，一定要分辨边材和心材。
3.The flow of food and water between the roots and leaves is accomplished by layers of cells formed by the cambium.
由形成层构成的细胞层，负责在根和叶之间运输食物和水分。
4.After primary growth, the vascular cambium in the rhizome of these plants becomes active, develops bast outward and wood inward.
这些植物在初生生长结束后，根茎中的维管形成层开始活动，向外发展出韧皮，向内发展出木材。
5.The outermost layers of a woody stem including all of the living and nonliving tissues external to the cambium.
木质茎的最外层，包括形成层以外全部活的和死的组织。
6.In theory, any two plants that are closely related botanically and that have a continuous cambium can be grafted.
理论上，两个近缘的并有连续的形成层的植株均能进行嫁接。
7.Acropetal differentiation of the cambium layer continues as the primary root elongates.
形成层的向顶分化像初生根伸长一样在继续进行。
8.There was a fiber ring in the cambium region of the stem, and some fiber bundles surrounded the phloem.
茎中形成层部位有纤维环，且有纤维束包绕在韧皮部周围；
9.From pith outward, ring width becomes narrower gradually, and no significant relationship between ring width and cambium age is found.
年轮宽度由髓心向外逐渐变窄，但年轮宽度与树木年龄回归显著性不高，相关系数均小于0.
10.However treatment with GA by itself promoted callus formation and inhibited new periderm, cambium and vascular tissues differentiation.
单独用GA可促进愈伤组织的形成，抑制新的周皮、形成层和维管组织的分化。