例句與造句

1. During the deep - hole blasting for the excavation of guishan quarry for construction of baoquan pumped storage hydropower station , the blasting powder factor and the charging concentration of the blasting powder in the rock are reasonably controlled , and then the rate of blasting chunk is greatly decreased with the reduction of the working amount of the boulder blasting afterwards in conjunction with the suitable excavator and crusher etc
   摘要在寶泉抽水蓄能電站工程龜山料場開挖的深孔爆破中，合理控制了爆破單位耗藥量和炸藥在巖石中的集中度，最大限度地降低了大塊率，并結(jié)合使用適宜的開挖及破碎機(jī)械等措施，從而減少了二次爆破工作量。
2. It's difficult to find boulder blasting in a sentence. 用boulder blasting造句挺難的