他們已用欄桿把草地和新鐵道的路塹隔離開(kāi)來(lái).They have railed the meadows off from the new railway cutting.鐵道的柵欄阻止行人跨越軌道.The railroad gates debar people from crossing the tracks.綜合治理電氣化鐵道的諧波和無(wú)功均要求動(dòng)態(tài)補(bǔ)償無(wú)功功率.The composite compensation of harmonic ...