cartridge-operated dry chemical fire extinguisher的意思|示意

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盒式干式化学灭火器

贮气瓶式干粉灭火器 ... 贮气式灭火器 cartridge operated fire extinguisher 贮气瓶式干粉灭火器 cartridge-operated dry chemical fire extinguisher 贮气瓶系统 gas container system ..