中文摘要：

纤维墙的 microfibril 角度是影响木头产品的表演的一个超显微镜的特征。得到更权威的信息改进选择和利用因此是必要的。X 光检查衍射是为测量 microfibril 角度的一个快速的方法。在这份报纸，在种植园成年的马森松的 microfibril 角度的可变性被山峰试穿方法调查。这个方法与传统的绘画手的方法， 40% 山峰高度方法和半山峰高度方法相比。X 光检查衍射大小显示 microfibril 角度在树上作为位置的功能变化了。当距离从木髓增加了并且在成熟木头到达了一样的水平，吝啬的 microfibril 角度更逐渐地减少了。microfibril 角度也似乎从底清楚地减少向上。在赤木质和边材之间的角度紧张曲线的差别也被检验。

英文摘要：

The microfibril angle of fiber walls is an ultra-mieroscopic feature affecting the performance of wood products. It is therefore essential to get more definitive information to improve selection and utilization. X-ray diffraction is a rapid method for measuring microfibril angles. In this paper, the variability of microfibril angle in plantation-grown Masson pine was investigated by peak-fitting method. This method was compared with the traditional hand-drawn method, 40% peak height method and half peak height method. X-ray diffraction measurements indicated that the microfibril angle changed as a function of the position in the tree. The mean microfibril angle decreased more gradually as the distance increased from the pith and reached the same level in mature wood. The microfibril angle also seemed to decrease clearly from the base upward. Differences of angle-intensity curves between heartwood and sapwood were also examined.