REPORTER: Spain's mission was to map the sea floor around the volcano using a machine called a multi-beam echo sounder.

西班牙的任务是用一种叫做多波束回声测深仪的仪器绘制火山周围的海底地图。

22.when passing one fathom bank , check the depth and variable sand waves below the sea level all the time by echo sounder

通过一托浅滩时，要一直测深校时水深及海面下多变的沙绞。

However, despite a full deep water archeological expedition, including some state of the art technology, robots, and echo sounders, there is still a lot that researchers simply don't know.

然而，尽管进行了全面的深水考古探险，包括一些最先进的技术、机器人和回声测深仪， 但仍有很多研究人员根本不知道。

We have echo sounders to detect zooplankton and fish, acoustic Doppler current profilers for measuring the currents in the water, wet-lab fluorometers for measuring chlorophyll and organic matter, and a few other specialist sensors as well.

我们可以通过探测仪来检测浮游生物和鱼类，并通过声学多普勒流速剖面仪来测量水下洋流，通过荧光检测仪检测叶绿素和有机物，以及使用其他专业传感器进行检测。

Boaty did encounter a bit of trouble, like a school of krill so dense it tricked the submersible’s echo sounders, which use sonar to tell how far down the ocean’s bottom is.

Boaty 确实遇到了一些麻烦，就像一群非常密集的磷虾欺骗了潜水器的回声探测器， 后者使用声纳来判断海底有多远。