本文介绍了一种新型非开挖施工机械———液动穿孔机。
This paper describes a non - excavating construction machine - hydraulic perforator.
挖掘机械和操作人员可能伤及在开挖区域内的、临近车辆的工人或破坏资产。
The Excavating Machine and Operator have potential to harm workers in excavation, nearby vehicle traffic, or assets.
土方工程：采用两台挖机机械挖土，采用单坑开挖和条形开挖二种方案。
Earthworks: two excavators to be used for excavation, two construction methods like single pit excavation and strip excavation to be adopted.
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