Jìdiànqì de jiēdiǎn yǐjīng yǎnghuà, xūyào gēnghuàn.
The contacts on the relay have oxidized and need to be replaced.
Tips
usage
Engineering term - distinct from 接触 ("to come into contact") which is a verb. 接点 is the physical contact point itself, e.g. on a switch, relay, or PCB.
