Just ordinary camera (or digital camera, scanner, digital camera, etc.), plus a small software, the marking fast, easy and immediate ranking, statistical analysis of results.
只需普通摄像头(或数码相机、扫描仪、数码摄象机等)，再加上一个小软件，即可轻松快速阅卷，并能立即排名、统计分析成绩。
Just ordinary camera (or digital camera, scanner, digital camera, etc.), plus a small software, the marking fast, easy and immediate ranking, statistical analysis of results.
只需普通摄像头(或数码相机、扫描仪、数码摄象机等)，再加上一个小软件，即可轻松快速阅卷，并能立即排名、统计分析成绩。
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