您要查找的是不是：
- 压缩空气A类泡沫compressed class A air foam
- 自动压缩空气A类泡沫灭火系统的特点及在使用中的几点注意事项The Characteristics of automatic pressurized air class A foam fire extinquishing system and some of it's points for attention in application
- A类泡沫class A foam
- A类泡沫系统class A foam system
- 压缩空气A类泡沫灭火系统的试验和研究The Study on the Compressed Air Class A Foam System
- 罐式混合批量混合<一种应用A类泡沫的简单方法batch mixing
- 聚氨脂类泡沫polyurethane foam
- 不仅A而且not merely A but also B
- 与其说A不如说not so much A as B
- 胺类amine
- A股A-share
- 聚类分析cluster analysis
- 灵长类Primates
- 把A误以为take A for B
- 果类fruit
- 类项category
- 布类mercery
- 第一类first kind
- 蔬菜类greengrocery
- 脂类FAT
