As a factory worker, he had to save up for two months and sell his wife's coats and watch to buy an ordinarycamera.
作为一名普通工人,他必须省吃俭用两个月来存钱,甚至要变卖妻子的衣物和手表来购买相机。
2
Just ordinarycamera (or digital camera, scanner, digital camera, etc.), plus a small software, the marking fast, easy and immediate ranking, statistical analysis of results.
The present invention can realize an effective character-inputting device only by utilizing an ordinarycamera with a red-light filter and a simple red light-emitting device.