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00:21
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00:15
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00:18
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00:20
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00:12
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:15
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:15
gvs of electrical appliances being turned on in the home, including a woman in a kitchen using a stove cooker with a frying pan on top of the hob,... - 電暖爐 個影片檔及 b 捲影像00:09
pan left across furniture in retro styled living room, past electric fireplace and fish tank to analogue television , decorative blown-glass fish... - 電暖爐 個影片檔及 b 捲影像00:07
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:16
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:15
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:15
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:15
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:07
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:15
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:15
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:16
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:10
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:13
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:15
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:15
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:14
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:13
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:15
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:15
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:15
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:15
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:15
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:15
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:13
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:12
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:15
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:15
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:15
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:15
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:15
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:15
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:15
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:13
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:15
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:15
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:14
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:15
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:13
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:15
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:15
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:15
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:15
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:15
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:07
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:15
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:07
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:12
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:06
technician is checking air conditioner ,measuring equipment for filling air conditioners.(vdo4k) - 電暖爐 個影片檔及 b 捲影像00:15