1. 在指定坐标绘制一个点：DrawPathStart - 声明绘制列表开始 | DrawPoint - 在指定坐标绘制一个点 | DrawPopClipPath - 终止修剪路径定义
2. 在指定座標繪製一個點：DrawPathStart -- 聲明繪製列表開始 | DrawPoint -- 在指定座標繪製一個點 | DrawPopClipPath -- 終止修剪路徑定義
1. Research on the original body recovered from drawn-ore & from multi - drawpoint during ore caving
对多漏孔放矿放出体的研究
2. The successful experiment of block caving mining method directly depends on the ground control and drawpoint support.
地压控制和支护工作的好坏，直接影响到自然崩落采矿方法试验的成败。
3. The mathematical relationships among mixed layer thickness, ore recovery and waste dilution against drawpoint spacing, volume per drawing, cut-off waste dilution and level interval are studied in details. It shows that the contact face between ore and waste as a ideal interface is incorrect during drawing.
以二次回归正交放矿计算机仿真实验为研究手段，以单一采场放矿为研究对象，详细地阐明了混杂层厚度、矿石回贫指标与漏斗间距、一份放出量、截止废石混入率及阶段高度之间的数学关系；研究指出：在放矿过程中，将崩落矿岩接触带视为一理想界面是不正确的。
4. The practice shows that the flow velocity of bulk ore rock at the stope drawpoint and the dimensions of drawpoint have remarkable influence on the drawing effect.
实践证明，采场放出口矿岩散体速度分布和放出口尺寸对放矿结果有显著影响。