Tutor showing pills solubility tester to the students
Turning on pills solubility tester spinning in the laboratory
Hand of person putting the settings to the pills solubility tester
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Student asking for help or explanation of teacher at exam or knowledge checking. Students test. Female professor explaining something and
A professor explaining the chemistry reaction to the students
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Caucasian female student writing test at college and professor helping her and explaining something. Teacher talking with girl at seminar at
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Young Caucasian girl student writing test at college and professor helping her and explaining something. Teacher talking with female
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Caucasian female young professor helping to student with exercise or test task. At lesson. Examination concept. Teacher explaining something
Medical students in the lab testing the pills
IT specialists, software testers and web designers working in office, multiethnic workers
Multiracial man and woman checking motherboard with multimeter tester in electronics laboratory. They discussing and explaining different things
Engineer measuring technical parameters of industrial machine with tester close up. Use of electronic technology in production. Electrician with multimeter tester in hands working in workshop