Propellents are required to be added in the
A: Aerosols
B: Sprays
C: Powder aerosols
D: Liquid preparations for use in nebulizers
A: Aerosols
B: Sprays
C: Powder aerosols
D: Liquid preparations for use in nebulizers
举一反三
- In aerosols, sunlight splits NO2 into .(NO and atomic oxygen / oxygen and atomic N)?
- Coxiella bumetti is readily transmitted by A: mites B: lice C: feas D: ticks E: aerosols
- You can add liquid to the powder, or _________, the powder to the liquid.
- You can add the liquid to the powder, or ____ the powder to the liquid. A: contrary B: contradiction C: conversely D: contradict
- What might avert the danger of the building up of a high concentration of aerosols A: Nuclear power. B: Fossil fuels. C: Carbon dioxide. D: Atom bombs.