A rotary-drum phitomultiplier proseal and tabulate CCD-in the past been considered a scan quality and easy-to-action of qianheng point technology reduces the gap.

• 滚筒式平电倍增惯型与平不活式CCD型在畴前被觉得是扫描质量和易于操纵性之间的衡量不面 技艺的长进不小不小降低了这个差距。