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- The ice nucleation activation bacterial canker disease decreased the content of mobile proline in poplar barks, while caused the content of bark pectin to increase a bit. 摘要感染冰核细菌溃疡病的杨树树皮的果胶质含量比健株略高。病株树皮游离脯氨酸含量在总体水平上要低于健株。
- CHEMICAL CONSTITUENTS OF UNSATURATED FATTY ACID ETHYL ESTER FROM POPLAR BARK AND ITS MEDICINE EFFECTIVENESS 杨树皮不饱和脂肪酸乙酯化学组成及其药效
- Those trees have very beautiful white bark. 那些树长着非常漂亮的白色树皮。
- Not only did the dog bark at him, but (it) bit him. 这只狗不但对他吠叫，而且咬了他。
- Some officers bark out their orders. 有些军官以粗暴的声音发布命令。
- Dog that bark at a distance bite not at hand. 狗在远处叫，未必即咬人。
- The bark of saplings galled by improper staking. 由于不正确地打桩，小树苗的树皮受到了损伤
- A poplar tree, especially a cottonwood. 三角叶杨一种杨树，尤指三角叶杨
- The characteristically deep, gruff bark of a dog. 狗吠声有特色地低沉的、粗哑的狗叫
- The bark of plane trees peels off regularly. 悬铃木的树皮到时候就脱落。
- The birch has smooth bark and slender branches. 桦树有光滑的皮和细长的枝。
- Dogs that bark at a distance bite not at hand. 远处狗就叫，近身不会咬。
- I eulogize the tall and straight trunk of the white poplar. 我赞美白杨树那挺拔的树干。
- After a while, we find a shady place under some poplar trees. 过了一会儿，我们在一些白杨树下面找到了一个遮阴的地方。
- The diseased trees are marked by protuberances on their bark. 有病的树木可由其树皮上的结节看出。
- poplar bark [医] 白杨皮, 美国山杨皮
- The poplar leaves rustled in the wind. 杨树叶子被风吹得刷刷响。
- bonat poplar bark and leaf 白杨树
- Bring up in town, the boy find it difficult to separate a poplar from a willow. 那男孩是在城里长大的，所以觉得很难区别杨树和柳树。
- The indian peel the bark from tree to make canoe. 印第安人从树上剥下树皮做皮舟。
