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a close-up view of a technician in black gloves pressing a red power switch on a temperature control device
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电阻,电容器和电子元件在旧的回电路板控制器上
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環繞電路板元素的旋轉
mother with daughter color eggs for easter celebration in living room blurry view slow motion. focus on smartphone and light ring. shooting family vlog
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兩個年輕的同學一起做學校項目
macro shot of rotating electronic parts.
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沿著電路板上處理芯片的邊緣進行追蹤
戴眼鏡的聰明男孩用鐵和<unk>子<unk>接線
macroscopic view of electronic component rotation.
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靠近一個黃色導光二極管被開關啟動
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close-up of the quantum control panel - selective focus
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一個聰明的女生正在做一個教育項目
laser head and crocodile clamps on white background
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智能儿童<unk>接电路板的近距离拍摄
两名儿童正在构建电气机制的近距离拍摄
young man practising with the guitar
dolly shot of sewing machine in a clothing factory
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vertical shot of student soldering circuit board
兩個聰明孩子坐在辦公桌旁做項目工作
白人孩子在电路板套件中测量电流
學生坐在桌子上做學校項目
兩個孩子在做工程課題的近距離拍攝
校友用<unk>子压紧锡<unk>线的近距离拍摄
燈泡, 遮光燈, 桌子上的彩色電線或電線
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back view of video vhs device
a macro shot of a circuit board in vertical
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from a close-up, to zooming out of a completely assembled circuit board
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zooming out of close-up shot of a circuit board panel, showing the completed parts of its set-up
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a macro shot of a circuit board in vertical
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两名学童在做工程项目的近距离拍摄
科学用水测试 设置
close up of person at home untangling electric power leads and connection cables for laptop or other electronic device
故障的電線, 短路和火災的風險
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motion along wires and crocodile clamps on white background
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學生在學校做工程項目
zoom out shot of electronic components
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zooming out of close-up shot of a circuit board panel, showing the completed parts of its set-up
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variety of waste for recycling
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technician flipping toggle switches to test electrical equipment in a factory slow motion
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a worker removes warm pet preforms.
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worker operates a line of plastic preforms in high speed.
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電子印刷電路板, 晶體管, 電路和電氣硬體部件
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many old dusty resistors on a retro circuit board controller with other electronic components and plugs
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an ic integrated circuit chip along with many other electronic components on a dusty old computer board
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close up of a circuit board
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irregular electrical wiring, risk of short circuit and fire
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a capacitor, resistors and many other electronic components on an old retro circuit board controller
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檢查大電池的電池狀態
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兩個年輕的同學一起在工程學上做項目
close-up of a technician soldering a capacitor to a circuit board with a wisp of smoky fumes coming out of it
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