Clean excavatedmaterial shall be used for land reclamation or earthwork where practicable and subject to approval by AA.
可行时，经aa批准，开垦土地或土方工程应使用干净的挖掘物。
2
The aggregate used in the roller compacted concrete at Gongguoqiao hydropower station was the excavatedmaterial from underground caverns which relied on sandstone and SLATE.
功果桥碾压混凝土采用的骨料为地下洞室开挖料，骨料岩性以砂岩和板岩为主。
3
Even diluted by the terrestrial materialexcavated from the crater, this component of meteorites is easily identified.