[Hygienic evaluation of ventilation plans for placer mines in the northeastern USSR].
D004391:Dust / Q000517:prevention & control; D005374:Filtration / Q000295:instrumentation; D006920:Hygiene; D008906:Mining; D013696:Temperature; D014586:USSR; D014691:Ventilation
D004391:Dust
Gigienicheskaia otsenka nekotorykh skhem provetrivaniia rossypnykh shakht severo-vostoka SSSR.