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润湿接点①在通过音频的继电器接点叠加微小直流,以改善接点特性,减少噪声②以水银润湿的舌簧继电器接点,以改善接点特性,减少噪声
telecom. wet contact
润 湿 接点
: 3 phrases in 1 subject
Telecommunications3