不良接触 meaning in Chinese

badcontact
imperfect contact
loose contact

Fire hazard testing . part 2 : test methods . bad - connection test with heaters
着火危险试验.第2部分:试验方法.第3节:用发热器作不良接触试验
Fire hazard testing for electric and electronic products - test method of bad connection with heater
电工电子产品着火危险试验用发热器的不良接触试验方法
Fire hazard testing ; test procedure 2 - 3 ; bad - connection test with heaters ; identical with iec 60695 - 2 - 3 , edition 1984
着火试验.第2 - 3部分:试验方法:用发热器作不良接触试