builder in protective workwear welds metal plank to pole of fence against green bushes on day
Welder connects plank to fence with powerful tool on spring day
Team of professional ecologists in protective coveralls, gloves, helmets and respiratory masks standing in polluted area, using laptop and talking
Protection of road from mountain slough, rockfall with metal accumulative restraining net fences. Workers constructing anti-landslide concrete wall prevent protect against rock slides.
Male farmer expert wearing protective equipment browsing tablet computer applications while examining green crops at the field walking at
Full shot of couple of ecologists in protective costumes walking along contaminated area of industrial city holding equipment with working copper smelting plant in background
Medium shot of couple of multiethnic agronomic engineers in protective coveralls, masks, caps, eyeglasses and gloves examining green seedlings of various sorts in contemporary vertical farm
Back-view footage of ecology experts in special protective costumes with equipment examining outskirts of most polluted city in world walking along dirty contaminated area
A part of botanist's female face seeing through a mini portable microscope for an external flowering structure or crystal trichrome, wearing a white protective gloves, alternative cannabis garden
Multi-ethnic greenhouse workers in protective masks and gloves harvesting ripe fresh tomatoes on vegetable plantation. Multiracial gardeners plucking organic tomatoes from bushes in greenhouse
Professional charming asian biologist woman with digital tablet in protective suit, mask and gloves working on water analysis, examining test tubes with samples of polluted water on mountain river.
Closeup portrait of male civil engineer wearing safety vest and protective hardhat while standing on construction site, affordable life-saving garment, reducing accident case in workplace, equipment