rock fall

基本解释

This paper puts forward a main working procedure and technique demand about building monitoring net (station) of rock fall and landslide.
本文提出了对崩滑地质灾害监测网（站）建网方案进行优选设计的主要工作程序和技术要求。
The dangerous of canyoneering would rock fall, faulty anchor system, flashflooding, as well as cold water, cold air, change of hypothermia, and little or no chance on rescue.
攀峡的危险有坠石、索具出现问题、泛洪、以及冰冻的水和空气、攀峡者体温过低、获救的机会几乎为零。
At the same time, it is still worth researching that which theory to use and what kind of theory model to found so as to solve the rock fall prediction problem to reduce damage loss by science.
而运用什么样的理论，建立何种理论模型能有效地解决崩塌的预报，达到科学预报防灾减害的目的，仍值得深入地探索研究。

Walls of rock fall away sharply at your feet.
"The first time we visited this rock last fall - there were maybe one or two children out of 15 who knew how to climb up this."