blasting crater meaning in English

爆破漏斗

Massive meteorite strikes continued for hundreds of millions of years , some blasting craters more than 1 , 000 kilometers in diameter
巨大陨石的撞击持续了几亿年，有些撞击所产生的陨石坑，直径超过1000公里。
The experimental result indicated that when the spacings meet some area , the blasting can gain the least visible depth , the biggest open area of blasting craters , the biggest thrown distance and a better accumulation state
实验结果表明，当平面药包间、排距满足一定范围时，爆破漏斗的可见深度较小，而开口面积和抛掷距离最大，爆堆形态较好。
Through a lot of small scale simulated tests in construction field , this paper systemically analyzed the dependence of the open area and visible depth of blasting craters , the thrown distance and the accumulation state of rock on the row spacing and the column spacing of plane charge
本文通过在施工现场进行的大量小型模拟实验，对平面药包间、排距与爆破漏斗的开口面积、可见深度、爆岩的抛掷距离和堆积形态等关系进行了系统分析与研究。