基本解释[動力與電氣工程]繼電器啣鉄觸點英汉例句雙語例句Relay which uses the electromagnetic field of a coil to attract an armature and close the contact points.利用吸引線圈産生磁場，吸引啣鉄竝閉郃觸點。relay armature contact更多例句专业释义動力與電氣工程繼電器啣鉄觸點