dry-chemical fire extinguisher

• 干粉灭火器

dry-chemical fire extinguisher的用法和样例：

例句

1. Each floor should have a dry-chemical fire extinguisher.
   每层楼都要放置干粉灭火器。
2. When the jet is small enough to be approached, put out the flame with a carbon dioxide or dry powder extinguisher.
   当喷射的火焰小到可以接近时，用二氧化碳或干粉灭火器扑灭火焰。