单词	浓双氧水
释义	浓双氧水perhydrol
随便看	coupling reagent coupling relay x-end coupling relay y-end coupling release handle coupling resistance coupling ring coupling rod couplings coupling screw coupling series coupling shaft coupling sleeve coupling socket coupling speed coupling spud coupling stability coupling stiffness coupling sugar coupling switch coupling technique coupling termination coupling time constant coupling (to fiber) for semiconductor coupling (to fiber) for semiconductor--laser coupling to photodiode