growth ring

noun

1. （树木、贝壳或骨等的）生长轮，年轮
   a layer of wood, shell or bone developed in one year, or in another regular period of growth, that an expert can look at to find out how old sth is

1. The bicycle by Zhang Pengye rotates the growth ring and vicissitudes.
   张鹏野笔下的自行车，转动着时代的年轮、岁月的沧桑。
2. Onthe basis of data obtained, we analyzed the variation of wood growth ring.
   根据测得的数据，分析了木材生长轮材性变异规律。
3. The Research on Growth Ring's Edge Detection Algorithm Based Image Fusion
   基于图像融合的年轮细胞边缘检测算法研究
4. A long-term forecast method of timber growth ring density based on process neural network was proposed in this paper.
   提出一种基于过程神经网络的木材生长轮密度长期预测方法。
5. To judge by the growth ring of the tree, it must have lived many years.
   从年轮来看，这棵树肯定活了很多年了。
6. Trace of Growth Ring, Exhibition of Beijing Youth Art Society;
   《年轮的遗痕》参加北京青年画会首届会员作品展（中国美术馆）；
7. However, in the third quarter than the growth ring, some banks have registered negative growth showed faint signs of slowdown.
   然而，在第三季度环比增长，一些银行出现了负增长，显示出放缓的迹象微弱。
8. But if there is more than quarter of negative growth ring, you need to bank the future development of a very cautious approach.
   但是，如果有比出现负增长，环的四分之一以上，则需要银行的一个非常谨慎的态度的未来发展。
9. The existence of growth ring was a potential threat to the safety of water supply.
   生长环的存在是安全供水的潜在威胁。
10. As planting density increased, the growth ring width and tracheid row decreased but proportion of late wood increased.
    造林密度大，则生长轮变窄，管胞列数减少，晚材率增加。
11. Preliminary study on the correlation of annual growth ring width of Beijing poplar climatic factors
    北京杨年轮宽度与气候因子相关性初探
12. Studies on the variation of the growth ring wood quality of Cunninghamia lanceolata
    杉木生长轮材质变异的研究
13. Moreover, the concentrations of the elements in the growth ring significantly positively correlate with the ring width index, except Cu and K.
    此外，除Cu和K外，各轮中的元素含量和该轮的轮宽指数有着明显的负相关关系。
14. Response of carbon isotope composition of Chinese red pine annual growth ring cellulose to East China temperature variations
    中国红松年轮纤维素碳同位素组成对中国东部气温变化的响应
15. Analysis on material composition of growth ring in urban water distribution network
    城市管网生长环物质组成研究分析
16. Effects of Variance Coefficient of Growth Ring Width on Sound Vibration Parameters of Picea Wood
    云杉属木材生长轮宽度变异系数对声振动参数的影响
17. Based on the data from stem analysis and growth ring measurement, regression models of stem volume with DBH and tree height of 70 years Picea asperata plantation were established.
    根据树干解析资料，建立了70年人工云杉林的单株材积与胸径和树高的数学模型。
18. The results of the energy spectrum analysis showed that, iron element was the main material of the growth ring, which account for more than 30%.
    能谱分析结果表明，铁元素占生长环的质量分数在30%以上，是生长环的主要组成物质；
19. Forecasting Model of Density of Wood Growth Ring Based on Neural Network
    基于神经网络的木材生长轮密度预测模型
20. Study on relationship between sound vibration parameters and growth ring width and latewood percentage of Picea genera wood
    云杉木材声振动性能与生长轮宽度、晚材率之间关系的研究
21. This theoretical method may provide theoretical fundament for wood growth ring analysis and forecast and special feature extract.
    该理论方法可为木材生长轮材质分析、预测和细胞成份的特征提取提供理论基础。
22. With the method of growth equation regression analysis, partition fitting determination and growth ring analysis, our study discussed neighborhood influence radius at different slope in natural secondary forest.
    鉴于天然林的生态、经济价值，本文以东北东部山区的部分主要树种为研究对象，采用生长方程回归分析、分段拟合判定以及年轮分析的方法，探讨不同坡位邻体影响半径的变化。
23. The contents of cellulose, lignin and pentosan related significantly to the ages of growth ring.
    纤维素、戊聚糖及木质素含量与生长轮年龄高度相关。
24. Study on Wood Microfibril Angle and the Correlation Models with Growth Ring Density of Ginkgo
    银杏木材微纤丝角及其与生长轮密度相关模型的建立
25. And the availability and effectiveness of the algorithm is proved by forecast of timber growth ring density.
    并以木材生长密度预测为例，验证了算法的有效性。
26. The differences among the microfibril angle, the double wall thickness, the ratio of cell wall to cavity and the tangential diameter in interaction of opposite wood and different growth ring all reached very significant level.
    微纤丝角、双壁厚、壁腔比及弦向直径在对应木与不同年轮交互作用中差异达极显著水平。
27. Fossil woods with distinct growth ring show that the climate has seasonal change obviously during that time.
    化石木清晰的生长轮表明当时气候具明显的季节性。
28. In pipe networks "growth ring" is an important factor to cause secondary pollution, so clearing the "growth rings" will help improve water quality and the capacity of pipes carrying water.
    管网中的生长环是造成二次污染的重要原因，清除生长环有利于提高供水水质和管道通水能力。
29. Improving the efficiency of flushing of barometric pulse method, it has the important theoretical and practical significance to reduce secondary pollution in water supply network. "Growth ring" is a mixture which consists of variety of inorganic matter, organic matter, and microbe.
    提高气压脉冲法的冲洗效率，对减少管网水质的二次污染有重要的理论和实际意义。生长环是多种无机物、有机物、微生物的混合物。

noun

1. an annual formation of wood in plants as they grow

   Synonym:    annual ring