high voltage power line pylon standing tall amidst lush green fields in rural landscape, symbolizing energy transmission - 安培值 個影片檔及 b 捲影像00:25
majestic power line pylon standing tall amidst lush green forests and distant mountains - 安培值 個影片檔及 b 捲影像00:31
young female engineer using multimeter and soldering tools to test and repair robotic arm in tech lab. ai and robotics development concept. - 安培值 個影片檔及 b 捲影像00:09
closeup young female engineer using multimeter and soldering tools to test and repair robotic arm in tech lab. ai and robotics development concept. - 安培值 個影片檔及 b 捲影像00:06
closeup young female engineer using multimeter and soldering tools to test and repair robotic arm in tech lab. ai and robotics development concept. - 安培值 個影片檔及 b 捲影像00:09
young female engineer using multimeter and soldering tools to test and repair robotic arm in tech lab. ai and robotics development concept. - 安培值 個影片檔及 b 捲影像00:09
closeup young female engineer using multimeter and soldering tools to test and repair robotic arm in tech lab. ai and robotics development concept. - 安培值 個影片檔及 b 捲影像00:06
young female engineer using multimeter and soldering tools to test and repair robotic arm in tech lab. ai and robotics development concept. - 安培值 個影片檔及 b 捲影像00:09
closeup young female engineer using multimeter and soldering tools to test and repair robotic arm in tech lab. ai and robotics development concept. - 安培值 個影片檔及 b 捲影像00:07
solar technician checking under photovoltaic panels with clamp meter and toolbox at solar farm - 安培值 個影片檔及 b 捲影像00:15
solar technician checking under photovoltaic panels with clamp meter and toolbox at solar farm - 安培值 個影片檔及 b 捲影像00:27
solar technician checking under photovoltaic panels with clamp meter and toolbox at solar farm - 安培值 個影片檔及 b 捲影像00:26
solar technician inspecting solar panels with clamp meter to measure electrical current at solar farm - 安培值 個影片檔及 b 捲影像00:25
solar technician inspecting solar panels with clamp meter to measure electrical current at solar farm - 安培值 個影片檔及 b 捲影像00:23
solar electrician master craftsman measuring power amperage and current intensity in solar field park build of high efficient photo-voltaic cell panels. - 安培值 個影片檔及 b 捲影像00:21
solar electrician craftsmen measuring the power amperage and current intensity in a solar park field with modern photo-voltaic pv cell panels. - 安培值 個影片檔及 b 捲影像00:40
solar electrician craftsmen measuring and discussing the power amperage and current intensity of solar field park build with state of the art photo-voltaic pv cell panels. - 安培值 個影片檔及 b 捲影像00:38德國
solar pv electrician master craftsman measures power amperage and current intensity in a solar field park build of high efficient photo-voltaic cell panels. - 安培值 個影片檔及 b 捲影像00:22
solar master electrician craftsman is measuring the power amperage and current intensity of solar field park build with high efficient photo-voltaic cell panels. - 安培值 個影片檔及 b 捲影像00:48
close up: portable generator's digital display showing power output and battery level - 安培值 個影片檔及 b 捲影像00:05
old analogue voltmeter measuring the voltage of electricity. close-up analog signal indicator with arrow. electrical measuring and control device - 安培值 個影片檔及 b 捲影像00:25
old analogue voltmeter measuring the voltage of electricity. close-up analog signal indicator with arrow. electrical measuring and control device - 安培值 個影片檔及 b 捲影像00:17
old analogue voltmeter measuring the voltage of electricity. close-up analog signal indicator with arrow. electrical measuring and control device - 安培值 個影片檔及 b 捲影像00:20
old analogue voltmeter measuring the voltage of electricity. close-up analog signal indicator with arrow. electrical measuring and control device - 安培值 個影片檔及 b 捲影像00:05
old analogue voltmeter measuring the voltage of electricity. close-up analog signal indicator with arrow. electrical measuring and control device - 安培值 個影片檔及 b 捲影像00:26
old analogue voltmeter measuring the voltage of electricity. close-up analog signal indicator with arrow. electrical measuring and control device - 安培值 個影片檔及 b 捲影像00:30
old analogue voltmeter measuring the voltage of electricity. close-up analog signal indicator with arrow. electrical measuring and control device - 安培值 個影片檔及 b 捲影像00:20
old analogue voltmeter measuring the voltage of electricity. close-up analog signal indicator with arrow. electrical measuring and control device - 安培值 個影片檔及 b 捲影像00:30
old analogue voltmeter measuring the voltage of electricity. close-up analog signal indicator with arrow. electrical measuring and control device - 安培值 個影片檔及 b 捲影像00:30
old analogue voltmeter measuring the voltage of electricity. close-up analog signal indicator with arrow. electrical measuring and control device - 安培值 個影片檔及 b 捲影像00:30
old analogue voltmeter measuring the voltage of electricity. close-up analog signal indicator with arrow. electrical measuring and control device - 安培值 個影片檔及 b 捲影像00:30