backward feeding反向: opposite direction; reverse; ...馈电: feed; supply单向馈电: one way feed; one-way feed定向馈电: directive feed双向馈电: two-way feed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:反向馈电,即可在微信中查询翻译