English ⇄ Russian

echo sounder works on the principle of measuring the time elapsed between transmission of a sound towards and its return from the sea-bottom stresses
Makarov.	действие эхолота основано на измерении времени прохождения звука от днища судна до дна и обратно; действие эхолота основано на измерении времени прохождения звука от днища судна до дна и обратно

echo sounder works on the principle of measuring the time elapsed between transmission of a sound towards and its return from the sea-bottom: 3 phrases in 1 subject

Makarov

3