My eyes flew back to the pressure gauge. The instrument indicated a depth of 6,000 meters. Our submergence had been going on for an hour.

现在我们继续做我们的观察我的眼光盯在压力表上面。表指六千米的深处。我们下沉开始以来有一小时了。

The plan that was in the book in the National Library showed a series of stairs with a total of forty-eight steps, which indicates a depth of more than ten meters.

国家图书馆书本上的平面图， 是一连串的楼梯， 共有四十八级台阶， 深度有十多米。