[Data for hygienic investigation of atmosphere in Leningrad apartments equipped with gas].
1958
M N TROITSKAIA
UI
MeSH Term
Description
Entries
D005740
Gases
The vapor state of matter; nonelastic fluids in which the molecules are in free movement and their mean positions far apart. Gases tend to expand indefinitely, to diffuse and mix readily with other gases, to have definite relations of volume, temperature, and pressure, and to condense or liquefy at low temperatures or under sufficient pressure. (Grant & Hackh's Chemical Dictionary, 5th ed)
D006801
Humans
Members of the species Homo sapiens.
Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001272
Atmosphere
The gaseous envelope surrounding a planet or similar body. (From Random House Unabridged Dictionary, 2d ed)