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- david poplar bark 白杨树皮
- Average length of fibre is 0.942mm, it excels that of rice straw, david poplar, it is similar to reed, white birch etc. 纤维平均长度为0.;942mm;优于稻草、山杨等;与芦苇、白皮桦等相近。
- The difference between highest and lowest monthly mean values is about 72% in Broad-leaved Korean Pine forest,73% in Asian white birch forest,26% in David poplar forest,56% in Spruce-fir forest,and 144% in Ermans Birch forest. 不同群落细根现存量月动态变化也有较大差异,月均最高最低相差阔叶红松林约为72%25、白桦林近73%25、山杨林26%25、云冷杉林56%25、岳桦林144%25。
- 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
- The shy men may be the very brethren of David. 那些羞怯男人大概就是大卫的教友们。
- FTIR Analysis on Function Groups of David Poplar Wood and Lignin Degraded by 6 Species of Wood White-Rot Fungi 6种白腐菌腐朽后的山杨木材和木质素官能团变化的红外光谱分析
- 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。
- David did not have a book to his name. 大卫没有一本属于他自己的书。
- David gave the door a kick and it flew open. 大卫一脚向门踹去，那门猛地开了。
- Some officers bark out their orders. 有些军官以粗暴的声音发布命令。
- David won't go to the movies with Helen next week. 大卫下星期不和海伦一起去看电影。
- 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
- David's house is quite close to the Global Theater. 大卫的家离环球剧院很近。
- The characteristically deep, gruff bark of a dog. 狗吠声有特色地低沉的、粗哑的狗叫
- David is famous for his billiards technic. 大卫因他的台球技术而出名。
- The bark of plane trees peels off regularly. 悬铃木的树皮到时候就脱落。
- David Jones rose to reply for the guests. 大卫琼斯站起来代表来宾致答辞。
