常見例句雙語例句The stone that cannot be dug directly can use blasting operation.機械不能直接開挖的石方采用爆破法開挖。The excavation of earthwork should be from top to bottom, and should not dig randomly and excessively. Forbid the use of blasting operation and hollow out earth.② 土方開挖均應自上而下進行,不得亂挖超挖,嚴禁用爆破法施工和掏洞取土。The effect of dynamic load resulting from blasting operation is simulated, and the breaking state of surrounding rocks may be predicted effectively in different cases.針對不同頻率情況,可以預先有效地確定圍巖破壞狀態(tài),決策開挖初期支護方案的有效形式; 返回 blasting operation