downthrow block下落断块;下降断块
downthrow wall下降盘
Bunter downthrow班砂岩降侧
downthrow side下落翼;陷落侧
downthrow fault下落断层;正断层;着落断层
magnitude of downthrow断层下落幅度
downthrow w fault下落断层
fault with reversed downthrow倾向相反的断层
a arent downthrow视断层下降盘
N（名词） the state of throwing down or being thrown down 投下