If the system measured temperature exceeds the set temperature range of values, alarm systems start working.alarm system consists of a shock buzzer, self-excited (NPN transistor) and electroluminous.是什么意思_If the system measured temperature exceeds the set temperature range of values, alarm systems start working.alarm system consists of a shock buzzer, self-excited (NPN transistor) and electroluminous.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句