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305 989 resultados para test em vídeos

TV colour bars test card screen. SMPTE Television Color Test Calibration Bars. Test card. SMPTE color bars. Graphic for footage video and 1Khz Sine Wave
00:28
HD
4K Close up of pencil being used on a multiple choice test paper
00:33
HD
over shoulder doctor writing on a form for a blood test
00:18
HD
Tilting down slowly to a Covid 19 positive antigen test on a wooden table 23.98 fps
00:10
HD
Woman face, blue eyes and vision focus, thinking idea and contact lenses to see, eyesight and awareness. Closeup macro on face, eyeball and optometry test stare with awake perception of human anatomy
00:11
HD
Pipette with liquid inside drop water in test tubes. Close up macro.
00:14
HD
Lab assistant makes urgent blood test for detection of antibodies and infections
00:29
HD
Generic 3d car crash test with crashtest dummy. Car destruction. Realistic 4k animation.
00:10
HD
Close-up of the Row of Students Writing in the Notebooks, Taking Exam. Focus of Hands with Pens. Shot on RED EPIC-W 8K Helium Cinema Camera.
00:12
HD
Unrecognizable female doctor explaining complete blood count test results on tablet to female patient. Ideal for medical clinic marketing and digital health app promotions
00:05
HD
Streaming countdown TV test card signal pattern animation. Television Color Test seamless looping
00:14
HD
16:9 TV color bar damage glitch distortion background, abstract noise effect. (4K UHD seamless looping, computer digitally generated animation.)
00:10
HD
Doctor hand taking a blood sample tube from a rack with machines of analysis in the lab background, Technician holding blood tube test in the research laboratory.
00:19
HD
Rotating rack of blood sample test tubes in a laboratory
00:10
HD
hand with pencil taking a multiple choice test
00:18
HD
Drop chemical fluid into laboratory test tube , science biological or chemistry research concept
00:16
HD
Scantron Test Paper
00:16
HD
Laboratory worker with blood sample in test tube at table indoors, closeup
00:06
HD
Retro television color bars test screen with analog noise and broadcast glitch texture, vintage media background with signal calibration concept
00:15
HD
after the test, the doctor puts the blood tests in a pallet
00:06
HD
An old retro vintage tv test pattern (appearing on air in case of technical difficulties), with a heavy glitch effect.
00:18
HD
Technical difficulties text on retro gray television test pattern
00:13
HD
Blood test taking of a young patient man of a young woman doctor in a modern clinic room , assistant are behind of the doctor.
00:24
HD
Doctor in medical PPE suit holds a covid antigen test of care testing. Lab performing rapid diagnostic test for antibodies to detect presence of antigens Coronavirus disease.
00:14
HD
Vintage “Please Stand By” test card with radial calibration pattern, sepia tone, and film dust texture
00:20
HD
Close Up Tracking Of Woman Holding Positive Pregnancy Test In Public Bathroom
00:10
HD
Process of express fast coronavirus covid Antigen AG PCR testing examination at home, COVID-19 swab collection kit, test tube for taking OP NP patient specimen sample, testing carried out
00:06
HD
Nurse puts a bar code on a test tube with a blood test
00:11
HD
Blood, research and hands of scientist in laboratory with sample for science, medical study or investigation. Healthcare, pharmaceutical and person with DNA test vial, RNA analysis and writing notes
00:09
HD
TU, MS, Side View shot of the head and shoulders of a crash test dummy
00:18
HD
Color tv test pattern with black and white bars
00:10
HD
Tilting down fast to slow to a covid 19 positive antigen test on a wooden table, 23.98 fps
00:11
HD
Blood samples in test tubes rotates in a centrifuge to separate blood from plasma for further analysis. Scientists biochemical laboratory manufacturing a vaccine against the covid-19 coronavirus.
00:10
HD
Selective focus shot of female scientist in protective mask and glasses pouring blue liquid in test tubes with pipette during microbiology experiment in laboratory
00:18
HD
Science, laboratory and woman with beaker for medical analysis, research and medicine. Healthcare, pharmaceutical and scientist with test tube for vaccine development, chemistry and liquid results
00:17
HD
An engineer in a crash test lab uses a car crash test system to simulate a traffic accident, to obtain the safety parameters of an eco-friendly cutting edge electric vehicle being developed.
00:12
HD
Doctor hand taking a blood sample tube from a rack with machines of analysis in the lab background, Technician holding blood tube test in the research laboratory.
00:17
HD
Doctor in gloves uses glucometer to check patient sugar level in blood at appointment. Physician examines woman with diabetes disease in hospital
00:18
HD
Waist up slowmo of group of multiethnic college students sitting one by one at desk in classroom writing test
00:28
HD
Team of Research Scientists Working On Computer, with Medical Equipment, Analyzing Blood and Genetic Material Samples with Special Machines in the Modern Laboratory.
00:13
HD
Tilt up close up shot of female biomedical scientist in goggles and face mask putting test tubes with blood samples from patients tested positive for covid-19 in rack
00:06
HD
Senior woman, eyes and focus for eye exam, test or assessment of vision, eyesight and optometry for elderly patient. Eye, closeup and old lady thinking with wrinkles, natural skin and wellness
00:05
HD
Muscular athlete with mask running on treadmill in gym for monitoring his performance. Sportsman in sports science lab measuring his performance cardio respiratory test professional athlete
00:25
HD
Scientist hands with microscope close-up shot in the laboratory
00:13
HD
TV test tablet with glitch interference on lcd screen background animation - new quality digital twitch technology colorful video footage
00:10
HD
A scientist in his laboratory holds a test tube containing DNA and is able to control the evolution of man thanks to holography. Concept of: DNA, technology, augmented reality.
00:14
HD
Process of coronavirus PCR antigen testing examination by nurse medic in laboratory lab, COVID-19 swab collection kit, test tube for taking OP NP patient specimen sample, patient receiving test, 4K
00:09
HD
Lab technician in blue gloves labeling urine sample test tube with barcode in modern medical laboratory for diagnostic analysis and research.
00:13
HD
Scientists wearing lab coats and gloves are analyzing blood test tubes and taking notes in a laboratory
00:19
HD
Lockdown, CU, SLO MO, head and shoulders of a crash test dummy hitting a deployed airbag
00:37
HD
Positive pregnancy test result with two red lines appearing
00:06
HD
Bright RGB color changing animated background for screen test
00:12
HD
A person brings vision glasses to his eyes. Moving from out of focus to focus. View of the First person view on the vision test table.
00:06
HD
Completing blood draw.
00:20
HD
Optometry, eyesight and eye test for senior woman, optometrist and slit lamp. Doctor, specialist and healthcare professional for ophthalmology, prescription and optician for eyecare appointment exam
00:06
HD
Male engineer simulates and watches process of traffic accident using digital tablet with modern system to change the safety parameters. 3D animation of electric car experimental crash test in lab.
00:14
HD
Airbag Deploys Closeup 2
00:29
HD
scientist take test tube
00:10
HD
Woman holding a pregnancy test in her hands. The result is positive.
00:12
HD
Medical Science Laboratory with Diverse Team of Professional Biotechnology Scientists Developing Drugs, Female Biochemist Working on Computer Showing Gene Therapy Interface. Back view Shot
00:16
HD
Technician hand holding test tube with blood. Doctor examining blood sample
00:08
HD
Asian female virologist in protective suit, mask, glasses and gloves dripping blue liquid from pipette into test tubes while working on antiviral vaccine at desk with microscope on it in laboratory
00:23
HD
Closeup, hands and a couple with pregnancy test results, comfort and reading together. Family, support and a man and woman with information on a baby, pregnant and care on the sofa for infertility
00:06
HD
Doctor performing nasal swab covid test on an elderly woman. High quality 4k footage
00:09
HD
closeup of doctor holding test tube of blood
00:20
HD
Glass test tubes with liquid on white background.
00:12
HD
Female laboratory specialist is working in the laboratory with a microscope
00:11
HD
Scientist with gloves injecting liquid sample into a plastic gradient lab for test
00:09
HD
Retro television broadcast test pattern featuring vibrant vertical color bars and a grayscale static section, indicating signal loss or display calibration
00:05
HD
A positive pregnancy test with a pregnant woman and her man feeling happy, excited and celebrating the good news. Hugging, cheering and feeling overjoyed about having a baby together as a couple
00:11
HD
The blood analysis. Analysis to identify the HIV virus.
00:13
HD
In the laboratory, a tensile test is carried out on the sample. Determination of the physical and mechanical properties of the material
00:09
HD
TV test card signal pattern animation. Please stand by starting soon streaming countdown. Television Color Test Calibration Bars. seamless looping
00:14
HD
Analysis of the PH and chlorine of the water in a swimming pool in Summer. Check quality of water with test strip, comparing results.
00:15
HD
Smile, pregnancy test and happy couple with positive result excited for their family together. Happiness, joyful and pregnant woman celebrating with love and support from her husband with future baby
00:06
HD
Test results, working mom Unexpectedly Reading a pregnancy test Sitting in the bathroom, Slow motion Pregnant woman Analyzing test strips Women's health centers, Test
00:08
HD
Unrecognizable man walking on treadmill during cardiac stress test
00:14
HD
Lab Research Test Tubes
00:08
HD
Pipette with water fall intro test tube with plant inside.
00:11
HD
Please stand by tv test pattern retro vintage broadcast. 4k animation video
00:10
HD
Conceptual 4K video of a doctor holding and looking at a test tube while testing samples for presence of coronavirus (COVID-19).
00:10
HD
A crash test dummy experiences a side impact collision.
00:11
HD
Scientist holding test strip and checking result
00:14
HD
Hand doctor holding a urine and blood tube test for analysis for doping or drugs. Doctor's hand with urinalysis and blood samples for drug test or alcohol over Medical report
00:16
HD
Intentional glitch distortion fx: a test pattern from a tv transmission, with colorful rotating bars, a black box and the warning text No signal.
00:12
HD
Taking a blood sample for testing in the tube and putting it on the stand
00:12
HD
An enlarged female eye behind a test lens.
00:16
HD
Technical Difficulties
00:05
HD
School girl writing in book in classroom, student learning for education at table and studying for exam in notebook in class. Children doing exam on paper, creative test at desk and focus on study
00:07
HD
A beautiful woman takes a pregnancy test and as soon as she reads that she is pregnant, she explodes in a moment of happiness and joy for the future birth of her child. Concept of: birth, life, family
00:12
HD
Please stand by text Vintage TV test screen with retro design and text "PLEASE STAND BY," featuring faded colors and geometric patterns for a nostalgic broadcast effect.
00:06
HD
Generic 3d car crash test with crashtest dummy. Car destruction. Realistic 4k animation.
00:10
HD
Abstract check mark red. green background check mark 4k video. Hand-Drawn tik Mark Animation on Black Background Animated Check Mark Icon Checkbox or Tick Doodle Animation.
00:06
HD
Close-up of the process of taking blood from the vein from man for biochemical blood testing. Preparation for blood test with by phlebotomist technician doctor in medical clinic.
00:56
HD
Hands of a food scientist mixing experimental food samples in test tubes and petri dishes highlighting the scientific approach to food formulation and preservation.
00:06
HD
automatic hematology analyzer with glass test tubes with blood
00:12
HD
scientist hand putting test tubes ampoules bottles in pcr machine Spbas. dna test, molecular biology technology. concept examining, diagnostics, pharmaceutical laboratory
00:17
HD
Lab Research Test Tubes
00:06
HD
Tv screen with Indian Head Test Pattern
00:14
HD
Lab technician holding blood tube sample for study. Medical technologist dropping blood into test tube in hospital laboratory
00:10
HD