MZ42 Type PTC Thermistors can be as Flourecent Lamp cathode pre-heating starting to preventing lamp-tube form blackening and extending lamp-tube operating life.是什么意思_MZ42 Type PTC Thermistors can be as Flourecent Lamp cathode pre-heating starting to preventing lamp-tube form blackening and extending lamp-tube operating life.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句