degeneration factor负反馈: degenerative feedback; inver ...系统: system退化: become vestigial; degenerate ...因素: factor; element负反馈系统: degenerative feedback system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:负反馈系统；退化因素，即可在微信中查询翻译
