In cross-sectioned root form 2 middle bark layer next Internal bark layer especial structure of regularly array;
根横切面上形成了在紧靠内皮层的两层中皮层细胞有规则整齐排列成两环的特殊结构；
If you peel birch bark in the winter, we call it "the winter bark", another layer, a tougher inner layer of the tree adheres to the bark, producing a stronger material.
如果你在冬天剥桦树皮，我们称它为“冬树皮”，另外一层更加坚硬的紧贴树皮的树层就可以生产出更强更硬的材料。
The birch tree has white bark, and this tough protective outer layer of the tree, this white bark, is waterproof.
桦树有白色的树皮，树上这个坚硬的保护外层，这个白色的树皮，是防水的。
For beds incorporate a 2 - to 4-inch layer of organic matter such as pine bark mulch or compost.
对于花坛或培养基而言最好是2 ~ 4英寸厚的有机养料层，诸如松树皮护根或混合肥料。
(botany) outer tissue of bark; a protective layer of dead cells.
(植物学)树皮组织外部的；由死细胞组成的保护层。
Configuration feature: For lofty deciduous leaf arbor, the bark of grown tree has the phellem layer that develop.
形态特征：为高大的落叶乔木，成年树的树皮有发达的木栓层。
The cortex of bark was consist of 9-12 layer nutrient element parenchyma so its mechanical capability have influence on the resistance to the disease.
山核桃树皮的皮层均由9 - 12层富含营养物质的薄壁细胞组成，其机械性能在一定程度上影响着树皮对溃疡病抗性。
An external layer, such as bark or rind.
外层外层，如树皮或果皮。
This paper illustrates the reaction of larch bark tannin extracts with sulfite and sodium hydroxide and the tests of its solution viscosity, MW-distribution and thin-layer chromatography.
通过对落叶松栲胶进行亚硫酸盐和氢氧化钠的改性，测定其溶液黏度，用不同溶剂进行分级和薄层色谱。
Thick layer of bark to make them little by fire, but landslides and strong winds can destroy those inverted tree, the Indians used fallen trees to build canoes or housing.
厚厚的树皮使它们很少遭到火灾，但山崩和强风可摧倒那些老树，印第安人用倒下的树木做独木舟或建房屋。
Thick layer of bark to make them little by fire, but landslides and strong winds can destroy those inverted tree, the Indians used fallen trees to build canoes or housing.
厚厚的树皮使它们很少遭到火灾，但山崩和强风可摧倒那些老树，印第安人用倒下的树木做独木舟或建房屋。
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