The only thing he received was a relief map.

他惟一得到的是张地形图。

Today, enough soundings are available to enable a relief map of the Atlantic to be drawn and we know something of the great variety of the sea bed's topography.

现在已有足够的水深测量数据来绘制一张大西洋洋底地形图，而且我们对海底地形的千变万化也有了一定的了解。