lead time 什么意思? To prevent any aqueous phase to be discharged with naphtha, a fixed funnel is installed in the naphatha chamber to provide approximately five minutes lead time. 为了防止水相随石脑油一起流出,安装一个固定的漏斗在石脑油室来提供大约5分钟的 提前期 。好像不对,请各位帮看看。 查看更多15个回答 . 3人已关注