用echo sounder造句子，“echo sounder”造句

A device used underwater to produce pulses of sound, as for an echo sounder.

The navigation equipment includes a gyrocompass, a bearing repeater for the helmsman, a magnetic compass, a radar, a log, an echo sounder, aP Mark3 navigator plus wind direction and panels once again in the wheel house and repeated for the helmsman.

horizontal projection echo sounder

hydrographic precission scanning echo sounder

In bathymetric survey, the recorded seabed is distorted due to the beam-width of the echo sounder.

magneto striction echo sounder

Inspection installation and water tightness transducer of echo sounder on berth.

narrow beam echo sounder

It also carries out surveys through two specially-designed vessels which are fitted with the latest type of equipment including multi-beam echo sounders.

Signal features and dynamic range compression of swath echo sounder

It is important to eliminate or degrade the effect caused by the beam width of echo sounders and reflect the true seabed.