常見例句Avoiding ignitron prefire with a coaxial structure 同軸安裝避免引燃琯自閃prefire information 災(zāi)前資料prefire planning 滅火作戰(zhàn)計劃prefire situation inspection 滅火前環(huán)境狀況的調(diào)查prefire survey 制定滅火作戰(zhàn)計劃前的調(diào)查 返回 prefire