A maxi- mum peak power of 660mW at 260.0nm was obtained with a helical hol- low cathode of 1.2m length, 6mm inner diameter and 9mm coil pitch.是什么意思_A maxi- mum peak power of 660mW at 260.0nm was obtained with a helical hol- low cathode of 1.2m length, 6mm inner diameter and 9mm coil pitch.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句