1·The tunnel sizeof 530 mm (20.9 in) wide by 350 mm (13.8 in) high is optimized for rapid inspection of small articles, allowing the XIS to inspect them with state-of-the-art imaging.
隧道大小为530毫米(20.9英寸)宽,350毫米(13.8英寸)高,可以使小件物品得到快速检测,采用了最先进的成像技术。