In the event of fire, canbon dioxide extinguishers should not be used.The most satisfactory extinguisher is a dry powder such as sand.是什么意思_In the event of fire, canbon dioxide extinguishers should not be used.The most satisfactory extinguisher is a dry powder such as sand.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句