as rock inte ce are crossed the elastic characteristics encountered generally change abruptly which causes part of the energy to be reflected back to the su ce where it is recorded by seismic instruments
当穿过岩石界面时，所遇到的弹性特性通常会突然发生变化，这导致部分能量被反射回地表，在那里它被地震仪器记录下来
以上为机器翻译结果，长、整句建议使用 人工翻译 。