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Firefighters battle a fully-engulfed, empty school building fire in Oklahoma.
Firefighters Extinguishing hard working to fix Fire ,Fireman wearing firefighter turnouts and helmet. Advant Fire Fighting and Fire Drill Training
a group of firemen helped stop the huge fire flammable. Rescue, Teamwork concept.
Attractive lab experiments in school chemistry classroom
The roof of a house is burning, while a firefighter rushes with his hose to put out the blaze.
Firemen spraying water onto a big fire. Two firefighters kneeling near the flames in a protective suits and helmets.
Determination of carbon and sulfur in inorganic materials using the combustion technique.
Laboratory with colorful liquids and ballon waiting for students
Firefighter Concept. Several firefighters go offensive for a fire attack. Fireman using water and extinguisher to fighting with fire flame.
Scientist is experimenting with chemicals.
Fire-fighters applying foam to a fire.
Firefighters using the high pressure hoses to extinguish the huge fire at their practice drill.
Two Firefighters practice to close the frame of fire and smoke from inside of the closed room
Arvada Fire Department cadets going through drills and exercises at the training faculty in the burn house in Arvada, Colorado.
Firefighters using fire hose extinguishing burning fire in building
photo of culture bacteria by usin steel loop
Doctor Analyzing Chemical In Hospital
Photovoltaic battery broken apart in a controlled testing environment. Green renewable energy safety and improvement tests
Banner Fire explosion flammable car fire on street smoke, hot danger flame burning effect. Fire burn car accident disaster conflagration. Burning red flame high heat inferno explode with copy space
A silhouette of a fireman talking on his 2-way radio
Firefighters in action to fight the huge Fire burning, Putting out the flames,
Medical technicians working on bacterial culture and drug resistance of pathogens in the laboratory
Rear view of Firefighter spraying high pressure water to control fire at Night.
Close-up shot of a burning loop for streck petri dish plate, checking an antibiotic in the laboratory.
Two firefighters are fighting a burning fire
Firefighter Rescue team training in fire fighting extinguisher. Firefighter teamwork fighting with flame using fire hose chemical water foam spray engine. Fireman wear hard hat, safety suit uniform
Firefighters in fire protection suits helping his teammate out of the fire. He got burnt in the fire.
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