- piston hydrophone
- поршневой гидрофон
English-russian dictionary of physics. 2013.
English-russian dictionary of physics. 2013.
Pressure measurement — The construction of a bourdon tube gauge, construction elements are made of brass Many techniques have been developed for the measurement of pressure and vacuum. Instruments used to measure pressure are called pressure gauges or vacuum gauges. A… … Wikipedia
Balao class submarine — The Balao class was a successful design of United States Navy submarine used during World War II, and at 128 copies built, the largest class of submarines in the United States Navy. An improvement on the earlier Gato class, the boats had slight… … Wikipedia