摘要：
A USB microscope is known as a low-powered usb digital microscope which connects to a laptop or desktop computer, usually as a result of a USB port. These are broadly commercially to the market place. In essence USB microscopes truly are a webcam obtaining a high-powered macro lens and typically is 阅读全文
posted @ 2011-03-29 15:41 服务器超时 阅读(138) 评论(0) 推荐(0)
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