第1个回答 2011-12-24
Charge-coupled device (Charged Coupled Device, CCD) is a series of closely spaced metal oxide semiconductor (Metal Oxide Semiconductor, MOS) light-sensitive components, with area array and linear array of points [1]. Which linear
CCD can be used as a photoelectric conversion unit, constitute spectroscopy instruments. This gauge is not necessary for conventional spectrometer mechanical transmission parts. Therefore, the use of linear CCD spectrometer measurement speed, light weight, less failure, portable, on-site measuring instrument of choice.
第2个回答 2011-12-20
After a war, a farmer and a businessman on the streets looking for property. They found a pile of charred wool, two individuals on the half back in her back.