This gadget you see right here was called the digital wall mapper, and it produced the first three-dimensional map anybody has ever done of a cave, and it happened to be underwater in Wakulla Springs.
ここに見えるのは「デジタル壁面地図作製器」と呼ばれ 洞窟の三次元マップを初めて作成し それはたまたまワクラ湧水だったのです