汉语词典HAOZIDIAN.NET

So far, the only signals detected are bursts of radiation from stars and a murmur of background noise left over from the big bang.

Sometimes the street locations just floated up and down on the screen, as if the satellites were being buffed around in their orbits.

As digital signals are more robust than analogue ones, consumers would be able to get much better sound and picture quality through DTV.

Bringing wireless to the countryside is uneconomical in any case, so the priority tends to be urban areas and interstate highways.

Kyodo said the Japanese government hopes to issue before the original visit to South Korea to North Korea "a strong signal. "

His latest project is trying to devise a way to send high-definition television signals over a comparatively slow network infrastructure.

Amplifiers are devices which take a relatively weak signal as an input and produce a much stronger signal as an output.

However, the terminology is often used to calculate decibels and measure signals on copper, optical, and wireless media.

As beans fall into bins, photoelectric cells detect duds , signaling for them to be rejected individually with a puff from an air nozzle.