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- The absolute moisture content of green wood,bark percentage and growth ring width are 96.9%,12.99% and 22.82 mm respectively. 树皮率为12.;99%25; 生长轮宽度平均为22
- VARIATION OF GROWTH RING WIDTH AND WOOD BASIC DENSITY OF RUBBERTREE AND THEIR MODELLING EQUATIONS 橡胶树生长轮宽度、木材密度变异及其预测模型的研究
- 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
- Keywords Taxodium distichum;Taxodium 'zhongshansha 302';tracheid;growth ring width; 落羽杉;中山杉;管胞;生长轮宽度;
- 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
- 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
- growth ring width 生长轮宽度
- The age models established by the growth ring and carapace length or carapace width predict that the large tortoise (carapace length>180mm) may exceed 24 years in field populations of Xinjiang. The expected longevity would be 28 years. 30:34(1991),成体龟数目远大于幼体龟的数目,利用年轮与背甲长度或体宽建立年龄模型,模型显示相同年龄的四爪陆龟,雌体生长速度大于雄体,通过年龄模型推测,背甲长度超过180mm的野生四爪陆龟的年龄可达24年,估计四爪陆龟的期望寿命为28年。
- From pith outward, ring width becomes narrower gradually, and no significant relationship between ring width and cambium age is found. 年轮宽度由髓心向外逐渐变窄，但年轮宽度与树木年龄回归显著性不高，相关系数均小于0.;5。
- Ring width and sapwood width of diseased poplar decreased significantly than that of healthy poplar, but sapwood portion was same. 受害材的边材宽度和年轮宽度均小于健康材,边材率无显著差异。
- Annual ring (growth ring) The annual increase in girth of the stems or roots of woody plants, as a result of cambial activity. 年轮：木本植物形成层的活动随着季节的更替而表现出有节奏的变化。
- A ringlike figure, part, structure, or marking, such as a growth ring on the scale of a fish. 环状物环状物、部分、结构或标志，如鱼鳞上的生长环
- Northeastbirch is tawny, growth ring slightly obvious.Shiny wood,straight texture, 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。
- What isfriends shp? It is afate that can't be pulled and torn. It passes through many hands or places to the end of Lfe. With growth ring of time. 友谊是什么？是一份牵扯不断的情缘，随着时间的年轮，辗转到生命的尽头。
- According to elastic modulus of bending strength, ratio of knot and diameter, grain slope, yearly ring width and the wood defects of crackle, rot, discor, determinating indexes of board grade of small diameter larch. 根据抗弯弹性模量、节径比、纹理斜度、年轮宽度和裂纹、腐朽、变色等木材缺陷,确定小径落叶松层板等级。
- If any other requirements for piston rod head, U type ring width of cylinder lid, and diameter of pin are needed when placing an order, it is recommended to use our existing forged pieces. 订货的场合，如果对活塞杆头、油缸盖的U形环的宽度、销子的直径等尺寸方面另有要求时，建议采用能够利用的本公司现有的模锻件。
- Dinosaurs tend to have highly vascular zed bone early in life and then develop dense bone with growth rings as they reach maturity. 恐龙在其一生的前阶段拥有密布血管的骨骼，而当其成年以后则具有厚厚的骨骼。
- Based on experiment of biological coloration and the theory of pipe mode, the model of water transpiration for Larix olgensis was studied by using the growth ring as basic unit. 根据管道模型理论,以年轮为基本研究单位,利用生物染色剂染色试验对长白落叶松的水分输导模式进行研究发现:长白落叶松不同年轮的水分纵向输导能力差异很大;
- The transition age between the 2 wood zones was at the 25th growth ring for red pine specific gravity arid at the 33rd growth ring for Taiwan red-cedar tracheid length. 其林龄，红松以比重方法求得者为25年，台湾红桧以管胞长决定者为33年。
