用“mercury vapor lamp”造句大全,mercury vapor lamp造句
Suitableforincandescentlamp,mercuryvaporlamp.Suitableforincandescentlamp,mercuryvaporlamp,high-pressuresodiumvaporlamp,metalhalidelamp.Duetoitshighmeltingpoint,puremolybdenumisusedaslampfilamentsuppor...