using common powder charge structure makes larger vibration damage to the surrounding rock when drifting and it needs higher requirements to tunnel support which leads to higher final cost
采用普通粉药结构，巷道掘进过程中对围岩的振动损伤较大，对巷道支护要求较高，最终成本较高
以上为机器翻译结果，长、整句建议使用 人工翻译 。