闭合－断开

【化】 make-and-break

闭合的英语翻译：

close
【化】 close; close-up; on
【医】 occlude; occlusio; occlusion; synezesis; synizesis

断开的英语翻译：

【计】 breaking; decatenation; disconnect; disconnection; kick-out; pull-down
release connection; release up; switch-off; turn-off
【化】 disconnection; open; tearing