【機】 relieving attachment

后退的英語翻譯：

back off; recoil from; backpedal; countermarch; fall back; recession
【醫(yī)】 backward progression; retrocession; retropulsion

附件的英語翻譯：

accessory; adjunct; annex; appendix; enclosure
【計】 accessory; attachment
【醫(yī)】 adjunct; adnexa; annexa; appendage; appendices; appendix; armature
【經(jīng)】 accessory; addendum; annex; attached sheet; attachment; enclosure
inclosure; supporting document