基本解释[经济学]有轮流动灭火器英汉例句双语例句Wheeled (mobile) fire extinguishers Visually examine at least one extinguisher of each type manufactured in the same year and kept on board.舟车式灭火器 在同年制造和装配船上的灭火器中，每个类型至少抽查一个。wheeled mobile extinguisher更多例句词组短语短语wheeled d mobile extinguisher 有轮流动灭火器wheeled mobile extinguisher更多词组专业释义经济学有轮流动灭火器