The Communications at Speed and Depth program was established to improve the ability of a submarine to communicate with other Navy vessels and stations when submerged.
洛·马将建立在深水和高速条件下的通信的研究计划，以改善潜艇与其他海军舰船和工作站通信的能力。
2
They briefly came into contact at a very low speed while submerged.
它们主要是在潜入水中时低速接触彼此。
3
It is assumed that the blade of the partially submerged ventilated propeler enters and exits from water at high speed.