engineers are inspecting the air conditioning system and measuring the amount of refrigerant in the air conditioners in the building.(vdo 4k) - 電暖爐 個影片檔及 b 捲影像00:18
the focus is on the air conditioner temperature gauge as a technician inspects the air conditioner and measures the amount of refrigerant inside. (vdo 4k) - 電暖爐 個影片檔及 b 捲影像00:12
engineers are inspecting the air conditioning system and measuring the amount of refrigerant in the air conditioners in the building.(vdo 4k) - 電暖爐 個影片檔及 b 捲影像00:18
engineers are inspecting the air conditioning system and measuring the amount of refrigerant in the air conditioners in the building.(vdo 4k) - 電暖爐 個影片檔及 b 捲影像00:14
engineers are inspecting the air conditioning system and measuring the amount of refrigerant in the air conditioners in the building.(vdo 4k) - 電暖爐 個影片檔及 b 捲影像00:16
engineers are inspecting the air conditioning system and measuring the amount of refrigerant in the air conditioners in the building.(vdo 4k) - 電暖爐 個影片檔及 b 捲影像00:18
engineers are inspecting the air conditioning system and measuring the amount of refrigerant in the air conditioners in the building.(vdo 4k) - 電暖爐 個影片檔及 b 捲影像00:17
engineers are inspecting the air conditioning system and measuring the amount of refrigerant in the air conditioners in the building.(vdo 4k) - 電暖爐 個影片檔及 b 捲影像00:16
engineers are inspecting the air conditioning system and measuring the amount of refrigerant in the air conditioners in the building.(vdo 4k) - 電暖爐 個影片檔及 b 捲影像00:17
engineers are inspecting the air conditioning system and measuring the amount of refrigerant in the air conditioners in the building.(vdo 4k) - 電暖爐 個影片檔及 b 捲影像00:17
golden retriever panting with its tongue out while lying on the floor in front of a small electric heater in a cozy living room during a warm winter day - 電暖爐 個影片檔及 b 捲影像00:22
golden retriever panting with its tongue out while lying on the floor in front of a small electric heater in a cozy living room during a warm winter day - 電暖爐 個影片檔及 b 捲影像00:15
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:24
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:20
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:21
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:20
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:18
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:21
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:15
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:20
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:18
engineer inspect modules of photovoltaic cell panels. industrial renewable energy of green power. - 電暖爐 個影片檔及 b 捲影像00:20
young engineers wearing orange safety jackets and ppe check the quality of solar panels on the solar farm. - 電暖爐 個影片檔及 b 捲影像00:05
young engineers wearing orange safety jackets and ppe check the quality of solar panels on the solar farm. - 電暖爐 個影片檔及 b 捲影像00:15
woman adjusting wall-mounted air conditioner with remote control in bright modern bedroom - 電暖爐 個影片檔及 b 捲影像00:17
woman adjusting wall-mounted air conditioner with remote control in bright modern bedroom - 電暖爐 個影片檔及 b 捲影像00:21
woman adjusting wall-mounted air conditioner with remote control in bright modern bedroom - 電暖爐 個影片檔及 b 捲影像00:25
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:15
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:27
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:25
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:19
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:19
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:12
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:21
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:20
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:20
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:20
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:25
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:15
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:17
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:20
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:21
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:07
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:27
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:20
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:20
large aerial view of an air-conditioners rooftop of a large building construction site during sunset (4k video). - 電暖爐 個影片檔及 b 捲影像00:15
large aerial view of an air-conditioners rooftop of a large building construction site during sunset (4k video). - 電暖爐 個影片檔及 b 捲影像00:16
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:15
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:14
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:18
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:19
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:12
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:14
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:18
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:22
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:20
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:11
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:19
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:22
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:16
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:20
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:26
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:20
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:19
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:22
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:28
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:21
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:14
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:20
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:20
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:20
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:12
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:21
technician is checking air conditioner. air conditioning, hvac service technician using gauges to check refrigerant and add refrigerant. - 電暖爐 個影片檔及 b 捲影像00:20
