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- The radial variation patterns of wood density in19 Chinese fir provenances were studied by means of X-ray wood densitometry. 以微密度分析对19个种源杉木的木材密度径向变异模式进行了研究。
- Wood density ranged from a high of 0.310 in Jiangsu Province to a low of 0.273 in Guizhou Province in southwestern China. 木材密度最大值为0.;310,来自江苏省,而最小值为0
- The radial variation patterns of wood density in 19 Chinese fir provenances were studied by means of X-ray wood densitometry. 以微密度分析对19个种源杉木的木材密度径向变异模式进行了研究。
- Based on that,further analysis found regression curve is closely exponential function y=6.874e-4.604x in correlation between wood density and optimal value of interference fit. 在此基础上;进一步探讨最佳过盈配合量与木材密度的相关性;得到其回归拟合曲线近似为指数函数y=6.;874e-4
- Correlation analysis shows that growth rate has no ef fect on wood density and chemical composition of Alnus cremastogyne plantations in the plantation area. 相关分析说明生长速率对四川桤木引种人工林的木材密度和化学组分作用较小。
- The radial variation patterns of wood density in Pinus elliottii and Pinus teada planted with different tree spacing in Hunan Province and Jiangsu Province were studied by x-ray wood densitometry. 对两个地区不同种植密度的湿地松、火炬松进行了微密度分析,研究了种植密度对木材密度径向变异模式的影响。
- THE FRACTAL ANALYSIS OF WOOD DENSITY CURVE 木材密度曲线的分形分析
- Keywords Taxodium distichum;Wood density;Variation; 落羽杉;木材密度;变异;
- BASIC PRINCIPLES AND METHODS TO DETERMINE WOOD DENSITY UNDER X-RAY X射线测定木材密度的基本理论和方法简介
- He joined the two pieces of wood together with glue. 他用胶水将这两块木料黏在一起。
- The wood is held in position by a clamp. 木头用钳夹固定住了。
- He shored up the wall with a thick balk of wood. 他用一根粗大的木头把墙撑住。
- Rubber has more resilience than wood. 橡胶有比木头更大的弹性。
- The axe sliced through the wood. 斧头一下子把木头劈开了。
- The bonfire was piled with wood. 篝火用木柴堆得高高的。
- That lathe is used for shaping pieces of wood. 那个车床是用来加工木材的。
- SSR Molecular Markers Related to Wood Density and Fibre Traits in Poplar 与杨树木材密度、纤维性状相关的SSR分子标记
- You need a strong adhesive to bond wood to metal. 需要强力胶才能把木料粘在金属上。
- Don't let the fire go out; there's plenty of wood. 不要让火灭了,有的是木柴。
- Keep that piece of wood; it may come in useful. 留着那块木头,它可能会有用的。