advanced ccd imaging spectrometer造句

例句与造句

1. Using the Advanced CCD Imaging Spectrometer on board the Chandra X-ray Observatory, Lopez observed the Galactic supernova remnant ( SNR ) W49B to understand the thermodynamic properties and explosive origin of the SNR . The observed electron temperature and absorbing column toward W49B suggest that the mean metal abundances are consistent with the predicted yields in models of bipolar / jet-driven core-collapse SNe.
2. It's difficult to find advanced ccd imaging spectrometer in a sentence. 用advanced ccd imaging spectrometer造句挺难的