geologic hazard activity的用法和樣例：
例句
- The research on drainage technique is instructive for quay stability analysis and geologic calamity prevention and control.
排水技術的研究對港口碼頭的穩定分析以及地質災害的防治具有指導性意義。 - Landslides are one kind of significant geological hazards, which have caused many casualties and much damage to property.
滑坡是一種嚴重的地質災害，給人類的生命和財產安全帶來重大的損害。
