Through archaeological fieldwork, in particular the excavation of structural remains and the recovery of artefacts, we hope to fill in the blanks.
通过考古队的实地挖掘，尤其是一些建筑残留物和相关器具，我们希望能填补这一空白。
The draft of coal mine excavation plan is typically an unhealthy structural and complex tech economic problem.
矿井采掘计划的编制是典型的不良结构和复杂的技术经济问题。
Typical units are cubic yards for excavation or concrete work and tons for structural steel.
典型的单位是挖方或混凝土工程的立方码和布局钢的吨位。
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