title: [Size of the sanitary protective zone around the ChKh-4L hop-picking machine].
mesh_terms: D000383:Agriculture / Q000295:instrumentation*; D003604:Czechoslovakia; D004391:Dust / Q000032:analysis; D009623:Noise, Occupational; D009787:Occupational Medicine; D014455:Ukraine
chemical_list: D004391:Dust
vernacular_title: K voprosu o razmere sanitarno-zashchitnoĭ zony ot khmeleuborochnoĭ mashiny ChKh-4L.