求翻译：这种改造成本低廉，导轨经改造后具有高精度，高耐磨性，寿命长，免修复的特点，符合小批量修配车间的使用性质，符合我国国情。是什么意思？

This kind of transformation cost is inexpensive, the guide rail has the high accuracy after the transformation, the high resistance to wear, the life is long, excuses from a required course the duplicate characteristic, conforms to the small batch repair and parts workshop use nature, conforms to ou