Since argon is nonflammable , special firefighting equipment and instructions are not needed .
由于氩不可燃,不需要特殊的救火设备和指导.
Since helium is nonflammable , special fire fighting equipment and instructions are not needed .
由于氦不可燃,不需要特殊的救火设备和指导.
A fan is particularly important for nonflammable products that evaporate quickly , such as methylene chloride .
不燃产品，迅速挥发，如二氯甲烷，一个风扇就显得尤为重要。
A trademark used for a variety of nonflammable gaseous or liquid fluorinated hydrocarbons employed primarily as working fluids in refrigeration and air conditioning and as aerosol propellants .
氟利昂一种用于一些不可燃气体或液体烷属烃的商标，主要用于制冷、空气调节和推进剂。
Liquid helium is inert , colorless , odorless , noncorrosive , extremely cold , and nonflammable . Helium will not react with other elements or compounds under ordinary conditions .
