过热故障中的过热与变压器正常运行下的发热是有区别的，正常运行时的其发热源来自于绕组和铁芯，即铜损和铁损，而变压器过热故障是由于受到有效热应力而造成的绝缘加速劣化，它具有中等水平的能量密度。 降重后：Writing in English was so tricky and virtually unattainable for Korean people today that were born while in the 1950’s. 答：大量读范文，养成英语思维模式，在写作时不要先组织汉语，然后把汉语翻... https://edgar9c478.wikilinksnews.com/4022419/英文论文降重_can_be_fun_for_anyone