Heat Traps Provided for inlet and outlet to reduce heat loss through the inlet and outlet during standby. (Not provided on 19-gallon models.是什么意思_Heat Traps Provided for inlet and outlet to reduce heat loss through the inlet and outlet during standby. (Not provided on 19-gallon models.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句