1. 解开：disengagement gear 分离装置 | disengagement 解开 | disengaging coupling 离合联轴节

2. 分离：disengaged side 下风舷 | disengagement 分离 | disengaging apparatus 松放装置

1. 脱离;分离
Disengagement is a process by which people gradually stop being involved in a conflict, activity, or organization.

e.g. This policy of disengagement from the European war had its critics.
这项从欧洲战场抽身退出的政策遭到了非议。

noun

1. to break off a military action with an enemy

Synonym: fallbackpullout

2. the act of releasing from an attachment or connection

Synonym: detachment