This is the essential difference between mace and pontil. 这是锏和铁棒的本质区别。
Single pontil examples, either single-gather or end-of-cane are rarer. 单铁棒的例子,无论是单一或聚集最终的甘蔗是罕见。
Old mother is whetting, and saying:" I want to whet this pontil to be a small needle. " 老妈妈边磨边说:“我正是要把这根铁棒磨成细小的针。”
Methods: Based on the EIT workplace, a phantom to simulate the disturbance of breast tissue was designed. The electric fields disturbance was simulated by NaCl solution and a pontil. 方法:基于EIT试验平台建立一个能有效模拟乳腺组织分布的物理模型,并用电导率有差异的NaCl溶液、铁棒模拟了电场分布。