fail open 和fail to open区别? 原帖由 solar3124 于 2009-1-23 13:36 发表 "fail open", it's wrong in terms of grammar. Cause fail is verb. and also open. Verb. plus verb. mean nothing but wrong expression. "fail to open", it's of the structure of "fail to do sth." while ... 不能这么死板的扣语法错误, 实际 工程上 很多都是 为了 简洁,不混淆的前提下。 fail open 是 阀门的一个属性特征。echo mm 的解释 比较到位,也许她对阀门有一定的了解。查看更多13个回答 . 1人已关注