With the expansion of information visualization applications, requirement of the control over the length of edges appears in the drawing of weighted arborescence.
随着信息可视化技术应用范围的扩大，赋权树形图的绘制过程中常常需要对边的长度进行限定。
2
The slenderizing wool fiber and the drawingexpansion wool fiber is spanned with normal wool, mercerization wool, cashmere, we can decrease the cost and increase spinning functions.
The research and application of organic shrinkage reducing agent (SRA) and non-organic expansion agent (EA) are drawing great attention among that of new-type concrete anti-cracking admixtures.