But in normal temperature this change needs huge currentpulsegenerator which cost is expensive.
但在常温下使基体组织发生变化需要庞大的脉冲发生器组，成本造价高。
2
The space crack arresting in metal die has been conducted on a new super-density pulsecurrentgenerator model ZL-2 designed by author.
自主设计了改进型ZL - 2超强脉冲电流发生装置，采用它实现了金属模具试件中裂纹的电磁热止裂。
3
Based on Semiconductor Opening switch (SOS) effect, the SOS can switch off current of great density within nanoseconds, which is applied to pulse power generator of inductive energy storage.