main shock的用法和樣例：
例句
- Aftershocks are generally weaker than the main quake, but buildings that have already been damaged are prone to collapse in an aftershock.
通常餘震比主震弱，但是，在主震中受損的建築往往因餘震倒塌。 - However, the earliest long-period seismographs recorded dispersive waves with large transverse displacement components in the main tremor.
但是，最早期的地震記錄，就記錄下了主震中具有很大橫向位移分量的頻散波。
main shock的相關資料：
臨近單詞
Mainoli
main
main content of military dialectics
main liquid-fuelled rocket engine
main transverse watertight bulkhead
Main component analytical technique
main operation housekeeping routine
main factors of integral increasing
main-assistant double intake duct
Main water-spread system in pools
main-chain-end funtionalization
Main Healthcare Places and Footbath
