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Check the battery.

Pre-K - Higher Ed
An auto mechanic uses a multimeter voltmeter to check the voltage level in a car battery.
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Camera lens

Pre-K - Higher Ed
Camera lens
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Deforestation

Pre-K - Higher Ed
Deforestation
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Car checking

Pre-K - Higher Ed
An auto mechanic uses a multimeter voltmeter to check the voltage level in a car battery.
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Car checking

Pre-K - Higher Ed
An auto mechanic uses a multimeter voltmeter to check the voltage level in a car battery.
Stock Footage0:12
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Camera lens

Pre-K - Higher Ed
Camera lens
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Camera lens

Pre-K - Higher Ed
Camera lens
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Camera Lens

Pre-K - Higher Ed
Close-up camera lens - 1080 HD
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Microscope.

Pre-K - Higher Ed
Laboratory microscope.
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Microscope.

Pre-K - Higher Ed
Laboratory microscope.
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Camera lens

Pre-K - Higher Ed
Close up of camera lens focusing
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Lens operation

Pre-K - Higher Ed
Lens operation
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Camera lens

Pre-K - Higher Ed
Camera lens
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Camera lens

Pre-K - Higher Ed
Camera lens
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lens camera

Pre-K - Higher Ed
lens camera
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Scientist working at the laboratory

Pre-K - Higher Ed
Scientist working at the laboratory
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Camera lens

Pre-K - Higher Ed
Camera lens
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Car checking

Pre-K - Higher Ed
An auto mechanic uses a multimeter voltmeter to check the voltage level in a car battery.
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Sun and lens flare

Pre-K - Higher Ed
Sun and lens flare, camera lens
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Scientists Working and using gel permeation chromatography in the Laboratory

Pre-K - Higher Ed
Scientists Working and using gel permeation chromatography in the Laboratory. he use glass syringe with
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Camera lens

Pre-K - Higher Ed
Camera lens
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Car checking

Pre-K - Higher Ed
An auto mechanic uses a multimeter voltmeter to check the voltage level in a car battery.
Stock Footage0:10
Getty Images

Transformer substation. High-voltage SF6 circuit breaker. Circuit breaker high voltage. Part of high-voltage substation with switches and disconnectors.

Pre-K - Higher Ed
Transformer substation. High-voltage SF6 circuit breaker. Circuit breaker high voltage. Part of high-voltage substation with switches and disconnectors.
Stock Footage0:15
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Camera Lens and eye

Pre-K - Higher Ed
Camera lens and eye