The population density decreases with the increase of diameter class.
种群密度随径级增大而减小。
Tree density in the forest decreased with the increases of height class and diameter class, whereas species abundance did not increase.
栎类次生林乔木的密度随高度级、径级的增加而递减，但树种丰富度却不随树木的密度增加而增加。
Both the Numbers of tree species and tree density decreased as height class or diameter class increased, fitting both negative exponential and negative power equations.
树种数和树木的密度都随高度级、径级的增加而呈负指数或负幂函数递减。
Fire disturbance only led to a significant difference in stand composition and diameter class structure for the stands at different locations, rather than completely destroying the forest.
火干扰并未完全地破坏森林，仅仅是导致林分中不同地点上林分组成和红松径阶结构的差异明显。
With OOP technique, CTDIB, a class applied to textile image process has been constructed. The example of wool diameter testing explains how to use this class.
利用面向对象程序设计（OOP）技术构建了纺织图象处理专用类CTDIB，并且以图象法羊毛直径测试为例介绍其使用方法。
The value of tightening torque is relative not only to the nominal diameter and quality class of the bolt, but also to the security of the threaded fastener.
指出螺栓联接的扭紧力矩值不仅与螺栓的公称直径及性能等级有关，还与能否保证联接可靠工作有关。
The thickness and breadth of the steel strip is determined according to different pipe diameter and ring stiffness class requirements.
加强钢带的厚度与宽度根据管材直径、环刚度要求不同而分别设计确定。
The superior quality apparel fabric described in this article, is knitted on precision-made large diameter machine from well packed first class materials with a high degree of evenness and cleanness.
生产高档针织服装面料需选用优质原料，使用高均匀度、无结、高度清洁、包装完好的纱线，在高精度的大圆机上织造而成。
The ratio of damaged trees was negatively correlated with stand density, soil depth and size class of diameter, and positively correlated with tree height.
林分密度和受灾率及土层厚度和受害株数均呈显著的线性负相关；
The ratio of damaged trees was negatively correlated with stand density, soil depth and size class of diameter, and positively correlated with tree height.
林分密度和受灾率及土层厚度和受害株数均呈显著的线性负相关；
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