surface subsidence的用法和样例：
例句
- With the technics of purdah infusion to stem water, surface sinking of large area can be prevented.
采用帷幕注浆堵水工艺可防止大面积地表塌陷的发生。 - The ground collapse and cracks caused by underground mining severely threaten the safe in production and destroy the surface environment.
地下采矿引起的地表塌陷和裂缝，严重威胁矿山生产安全，破坏地表生态环境。
