短語(yǔ)詞組短語(yǔ)derailment criteria 安全評(píng)判標(biāo)準(zhǔn)derailment prevention 脫軌預(yù)防derailment process 脫軌過(guò)程derailment guard 出軌防止器Derailment control 脫軌控制derailment safety 脫軌安全度derailment switch 脫軌開(kāi)關(guān)derailment course 脫軌過(guò)程derailment place 脫軌地點(diǎn) 返回 derailment