常見例句To realize the high efficiency of dernisting, thenew type cathode wires and anode tubes with superperformance were developed for increasing the current density and field intensity.實(shí)現(xiàn)除霧高效化，關(guān)鍵在于研制高性能的新型陰極線和陽極管，提高電流密度和電場強(qiáng)度。Cathode rays are attracted by a positive charge.陰極射線被陽電荷所吸引。A cathode ray tube is shaped like a large bell.陰極射線管的形狀象個(gè)大鈴鐺。 返回 cathode rays