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(shù)的研究對港口碼頭的穩定分析以及地質(zhì)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(zhì)災害，給人類(lèi)的生命和財產(chǎn)安全帶來(lái)重大的損害。
