communicating with submarines造句

• They were able to communicate with submarines over about half the world's surface.
• In such situations where mud pulse telemetry can't be used, the French company Geoservices has developed electromagnetic transmission, like the low-frequency waves used to communicate with submarines.
• In 1958, the realization that ELF waves could penetrate seawater led U . S . physicist Nicholas Christofilos to suggest that the U . S . Navy use them to communicate with submarines.
• Radio waves in the extremely low frequency ( ELF ) band of 30 to 300 Hz can penetrate to a depth of hundreds of meters, allowing them to communicate with submarines at their normal operating depth.
• The Reds favor Efica's unequal alliance with Voorstand, as a result of which a network of Efican caves has been threaded with cable in order to create a giant antenna used to communicate with submarines.
• VLF waves can penetrate seawater to a depth of at least 10 to 40 meters ( 30 to 130 feet ), depending on the frequency employed and the salinity of the water, so they are used to communicate with submarines.
• China would have been very interested to learn how the United States integrates the plane's various pieces of hardware, which can then communicate with submarines, ships and other planes and fuse intelligence gathered in the past with intelligence being gathered in real time, he said.
• China would be very interested to find out how the United States integrates the plane's various pieces of hardware, which can then communicate with submarines, ships and other planes in the area and fuse intelligence gathered in the past with intelligence being gathered in real time, he said.
• Around the 1970s there were reports among sport scuba divers from offshore from a Ministry of Defence area in Dorset in England of diver deaths, mass deaths of fish, and divers returning reporting " strange sonic noises " : they speculated about a secret anti-frogman weapon, but it may have been merely a powerful modulated ultrasound beam intended to communicate with submarines.
• JASON studies have included a now-mothballed system for communicating with submarines using extremely long radio waves ( Project Seafarer, Project Sanguine ), an astronomical technique for overcoming the atmosphere's distortion ( adaptive optics ), the many problems of missile defense, technologies for verifying compliance with treaties banning nuclear tests, a 1979 report describing CO 2-driven global warming, and the McNamara Line's electronic barrier, a system of computer-linked sensors developed during the Vietnam War which became the precursor to the modern electronic battlefield.