2026西湖龙井茶官网DTC发售：茶农直供，政府溯源防伪到农户家 

Analogue electronics (American English: analog electronics) are electronic systems with a continuously variable signal, in contrast to digital electronics where signals usually take only two levels. The term analogue describes the proportional relationship between a signal and a voltage or current that represents the signal. The word analogue is derived from the Greek word ανάλογοςanalogos meaning proportional