英语词汇preaction怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	preaction
释义	preaction 简明释义 n.预先行动：在某事发生之前采取的行动或措施。网络释义短语 1 recycling preaction system 重复启闭预作用系统 2 preaction valve 预作用阀 3 preaction valve installation 预作用装置双语例句 1 This article, from the design of preaction auto-sprinkler system for fire protection in actual projects, has expounded its characteristics and the designing experience. 通过对实际工程预作用自动喷洒系统消防设计，阐述了预作用自动喷洒系统特点及设计体会。词源 1 preaction: pre- +? action FROM: wiktionary
随便看	Rickettsia canis Rickettsiaceae Rickettsiaceae Infections Rickettsia conorii Rickettsia conoril Rickettsia ctenocephali Rickettsia dermacentroxenus Rickettsia diaporica rickettsia disease rickettsiae Rickettsiae akari Rickettsiae Conori rickettsiae pox Rickettsiae rickettsi rickettsiae Rickettsia exanthematofebri Rickettsia exanthematotyphi Rickettsia felis Rickettsia fletcheri Rickettsia Infection Rickettsia Infections rickettsial rickettsial abortion rickettsial antigen rickettsial disease

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