单词growth ring
un.: 生长年轮；生长轮
（树木、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
生长轮
生长年轮
"Growth ring" is a mixture which consists of variety of inorganic matter, organic matter, and microbe.
“生长环”是多种无机物、有机物、微生物的混合物。
A large number of result trees were cut down a tree stump left have dense growth ring is clearly visible.
大批年代久远的树木被人类砍伐只留下了树桩，一圈圈密密的年轮清晰可见。
Northeastbirch is tawny, growth ring slightly obvious. Shiny wood, straighttexture, fine structure and uniformity, poor hardness.
东北桦呈黄褐色，生长年轮略明显，木材有光泽，纹理直，结构细而均匀，但硬度稍差。
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。
Comparison of the Wood Growth Ring Width and Basic Density between the Half-sib Progeny and Parent of Pinus tabulaeformis Carr
油松半同胞子代及亲本木材生长轮宽度与密度的研究
Measures for Controlling Growth-ring Swelling of Chinese Fir Wood Products Coated with Water-based Paint
速生杉木制品水性涂装时年轮膨胀的控制工艺
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
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
Time Series Analysis of the Density of Wood Growth Ring for Larch Plantations
人工林落叶松木材生长轮密度时间序列分析
Dynamic character of climatic evolutionary process for tree growth-ring
树木年轮所标志的气候演变过程的动力学特征