废石是指已采下的不含矿的围岩和夹石的通称。在露天采矿场内，把剥离的覆土、围岩及不含工业价值的脉石通称废石，这些废石必须及时排弃到一定地点，能容纳废石的场所称为废石场。
随后，他听到她的脚步声离开他，超过废石砾，渐渐远去。
Then he heard her footsteps go away from him, over the rubble.
以某铁矿为例，阐述了利用尾矿废石制作微晶玻璃的配料原则和配料方法。
Taking an iron mine as example, the burden principles and methods for making the microcrystal glass from tailings and waste rock are described.
煤炭开采过程中对环境的主要影响有地表塌陷破坏和废石、废水、废气的排放。
Surface subsidence and the discharge of refuse, wastewater and waste gas constitute the main impact of coal mining on the environment.
应用推荐