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Bridged bicyclooctanes gave no significant bridgehead substitution.是什么意思？

Bridged bicyclooctanes gave no significant bridgehead substitution.

桥二环辛烷不给出有意义的桥头取代.

相关词汇
bridged gave no significant bridgehead substitution

bridged

v. 在…建桥( bridge的过去式和过去分词 )；

gave

v. 给予，赠送( give的过去式 )，（与名词连用描述某一动作，意义与该名词相应的动词相同），供给，交给；

no

adv. 不，否，一点也没有；adj. 没有的，不许的，一点儿也没有，决不是的；n. 不，否定，否认，反对票，否决票；abbr. 数字(number)，元素锘(nobelium)的符号；

significant

adj. 重要的，显著的，有重大意义的，意味深长的；

bridgehead

n. 桥塔，桥头堡；

substitution

n. 代替，代用，替换，<化>取代（作用）；
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