This interactive work allows visitors to enter and is fitted with viewing stations such as periscopes and portholes.
在这个交互性的作品中，参观者可以进入其中，里面还配备着诸如潜望镜、炮眼这一类的观测台。
Underground offices in Japan are being equipped with "virtual" Windows and mirrors, while underground depart we are pirates, these data are stolen from youdao s in the University of Minnesota have periscopes to reflect views and light.
