Walter Zapp, a Latvian engineer, developed a portable camera in 1937 that would fit easily into the palm of a hand and take high-quality pictures.
拉脱维亚工程师沃尔特·扎普(WalterZapp)在1937年发明了这款便携式照相机，它可以轻松的用手握住，拍出的照片质量非常高。
The signboard image of operating bay is captured by portable camera in real time, based on which it is determined whether the working staff has accessed to the proper bay.
利用便携式图像捕获设备获取当前工作间隔标志牌的实时图像，并用于判断工作人员是否走错间隔。
The signboard image of operating bay is captured by portable camera in real time, based on which it is determined whether the working staff has accessed to the proper bay.
利用便携式图像捕获设备获取当前工作间隔标志牌的实时图像，并用于判断工作人员是否走错间隔。
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