Thermal radiation: Process by which energy is emitted by a warm surface.

热辐射：受热表面发射能量的过程。

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The patient does not get much radiation from the process, which lasts only a few minutes.

VOA: special.2010.08.31

But those tests cannot start until a special licence is granted because the process uses radiation and the technology has never been used in a UK prison.

BBC: Scanners ruled out for NI prison searches after pilot

Simulating a dose of radiation is a complicated process.

WSJ: Scientists Find Safer Ways to Test Medical Procedures

According to the physicists, when a large black hole captures a smaller object like a medium-sized star the process causes gravitational radiation to be emitted in a preferential direction.

FORBES: Black Holes With a "Kick"