某公司在土石方爆破中发生重大事故。
台阶深孔微差爆破是一种大规模、快速的土石方施工方法。
Deep-holed millisecond blasting is a fast construction method applied to large scale earthwork.
市区土石方工程的爆破往往受到场地、环保等因素的限制,因而对施工提出了更高的要求。
The blasting of earth and rock engineering in civic district is be given much higher requirements because it is restricted by factors involving narrow site and environmental protection.
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