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engineer checking wires on glove that allows people to speak
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校友用<unk>子压紧锡<unk>线的近距离拍摄
vertical shot of student soldering circuit board
man playing poker at the casino.
connecting the automatic garage gate mechanism with remote controller. installation automatic gate motor and working for control gate home security system
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connecting the automatic garage gate mechanism with remote controller. installation automatic gate motor and working for control gate home security system
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拆卸小型遙控滑雪車玩具
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electrician working on an industrial control panel
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an electrician installing an inverter in a home. the image shows technical skill, modern tools, and attention to safety in electrical work
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一個聰明的女生正在做一個教育項目
兩個年輕的同學一起在工程學上做項目
兩個年輕的同學一起做學校項目
male worker tightens screws in cinema lens in workshop
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两名儿童正在进行电气施工的近距离拍摄
computer engineer repairing computer motherboard
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智能儿童<unk>接电路板的近距离拍摄
學生學習如何編程機器人
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computer circuit board
craftsman making leather wallet
computer motherboard ram slut closeup
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connecting the automatic garage gate mechanism with remote controller. installation automatic gate motor and working for control gate home security system
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mechanic using die machine on table 4k
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用多元計診斷一個故障的電路板
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technician place small transistor in place with heater
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drone manufactures, chips, solders, repairs, mechanic and motherboard
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computer engineer repairing computer motherboard
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兩個孩子在做工程課題的近距離拍攝
戴眼鏡的聰明男孩用鐵和<unk>子<unk>接線
integrated communication processor
electronic equipment repair shop. the engineer technician solders the printed circuit board of an electronic device under a microscope.
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環繞電路板元素的旋轉
connecting the automatic garage gate mechanism with remote controller. installation automatic gate motor and working for control gate home security system
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學生坐在桌子上做學校項目
太阳能电池板安装的焊接电路板在工作台上,轨道周围近距离拍摄
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close-up of a technician's soldering tools while repairing some parts of a circuit board panel
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computer motherboard cleaning closeup view
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printed circuit board with many electrical components
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selecting and picking up some wires and cables from a plastic box container
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close-up of a rail clamp device on a railway, showcasing intricate mechanical details
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兩個聰明孩子坐在辦公桌旁做項目工作
两名学童在做工程项目的近距离拍摄
electronic equipment repair shop. the engineer technician solders the printed circuit board of an electronic device under a microscope.
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白人孩子在电路板套件中测量电流
computer motherboard cleaning closeup view
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學生在學校做工程項目
electronic equipment repair shop. the engineer technician solders the printed circuit board of an electronic device under a microscope.
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electronic device repair/testing
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therapist performing moxibustion procedure at health center. moxibustion is a thermal effect on biologically active points located across the entire surface of the human body
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两名儿童正在构建电气机制的近距离拍摄
a computer repair technician assembling a new gaming pc case with a power supply and screw driver
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