4K Young male technician in overalls performing scheduled maintenance on an indoor air conditioning unit removing a dusty filter for 股票录像 Young male technician in overalls performing scheduled maintenance on an indoor air conditioning unit removing a dusty filter for 股票录像
4K Male technician arriving yard tapping tablet demonstrating solar cells for african american family male technician arriving yard 影视素材 Male technician arriving yard tapping tablet demonstrating solar cells for african american family male technician arriving yard 影视素材
4K Hands of a male technician in a plaid shirt are seen using a screwdriver to secure wires to a terminal block on a wooden workbench 股票录像 Hands of a male technician in a plaid shirt are seen using a screwdriver to secure wires to a terminal block on a wooden workbench 股票录像
4K Hands of a male technician assembling electrical components inside a junction box with tools and wires arranged hands of a male 股票视频 Hands of a male technician assembling electrical components inside a junction box with tools and wires arranged hands of a male 股票视频
4K Hands of a male technician in checkered shirt carefully position wiring box with flexible conduit and connectors on wooden 股票录像 Hands of a male technician in checkered shirt carefully position wiring box with flexible conduit and connectors on wooden 股票录像
4K Hands of a male technician in a gray sweater work on assembling electrical components including a yellow plastic container and 股票视频 Hands of a male technician in a gray sweater work on assembling electrical components including a yellow plastic container and 股票视频
4K Korean male technician tapping control panel in factory generating animated analytics graphs korean male technician tapping 股票录像 Korean male technician tapping control panel in factory generating animated analytics graphs korean male technician tapping 股票录像
4K Male technician picking up device starting ar overlay selecting icons for testing in tech workshop male technician picking up 影视素材 Male technician picking up device starting ar overlay selecting icons for testing in tech workshop male technician picking up 影视素材
4K Male technician in black gloves tightens a metal bolt using a tool on a workbench with copper pipes and various tools arranged 股票录像 Male technician in black gloves tightens a metal bolt using a tool on a workbench with copper pipes and various tools arranged 股票录像
4K Hands of a male technician in plaid shirt cutting electrical wire with strippers on wooden workbench surrounded are seen an by 影视素材 Hands of a male technician in plaid shirt cutting electrical wire with strippers on wooden workbench surrounded are seen an by 影视素材
4K 一名男性技术员戴着黑色手套，用虎钳拧紧一个金属螺栓，周围环绕着各种工具，在一个木制工作台上 影视素材 一名男性技术员戴着黑色手套，用虎钳拧紧一个金属螺栓，周围环绕着各种工具，在一个木制工作台上 影视素材
4K 一位西班牙裔男性技术员正在检查抽油机旁手机上的移动数据，戴着白色安全帽和荧光背心，专注于读数和 股票录像 一位西班牙裔男性技术员正在检查抽油机旁手机上的移动数据，戴着白色安全帽和荧光背心，专注于读数和 股票录像
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