基本解释[管理学]灭火器喷射开关英汉例句双语例句The switch on this kind of fire extinguisher opens up automatically.这种灭火器的开关能自动开启。fire extinguisher switch更多例句词组短语短语fire extinguisher transfer switch 灭火器转换开关fire extinguisher tra fer switch 灭火器转换开关fire extinguisher switch更多词组专业释义管理学灭火器喷射开关