快速接头的英文：
quick release coupling

quick是什么意思：
adj. 快的；迅速的；灵活的；灵敏的；伶俐的
adv. 快地；迅速地

"Quick at meal, quick at work"
吃得快,做得快

Quick decision is characteristic of him.
快速决定是他的特征。

He runs as quick as a deer.
他跑得跟鹿一样快。

release是什么意思：
v. 松开，排出，免除
n. 放松，发布的新闻

release (of a pollutant)
排出污染物; 放出污染物

release of nationality
国籍解除; 放弃（脱离）国籍

memorandum of release
放弃索取换地权益备忘录

coupling是什么意思：
n. 耦合；联结
v. couple的现在分词形式

bayonet coupling
卡口式联结

It is not every couple that is a pair
成双并非皆配偶

Every couple is not a pair
同床异梦,貌合神离