reverse polarity smear反: reverse side曳: drag; haul; tug; tow尾: hairs on a horse's tail spik ...反极性: antipolarity; buck; opposite polarity; polarity reversal; reverse polarity; reversed polarity; reversepolarity反极性(电焊): reversed polarity下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:反极性曳尾，即可在微信中查询翻译
