face slab的用法和樣例：
例句
- Grading exploitation of rock-filling materials has great impact on face rock-fill dam filling and construction cost.
摘要面板堆石壩堆石料的級配開採對大壩的填築質量和施工成本影響重大。 - The concrete face rockfill dam of Lianhua Hydropower Station is the first large scale face rockfill dam in the cold region in China at present.
蓮花水電站建設的混凝土面板堆石壩，是目前我國在寒冷地區修建的第一座大型面板堆石壩。
