smooth - wall blasting

• 光面爆破

smooth - wall blasting的用法和样例：

例句

1. The application of smooth blasting technique and the eflicient measu,cs in excavation of the underworkings are disc.ussed.
   文章阐述了井下永久巷道光面爆破技术的应用和提高井下永久巷道开拓的光面爆破技术质量的措施。