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单词 pulsar
释义 pulsar
[`pǝl´sär]
ASTROPHYSICS
A celestial radio source, emitting intense short bursts of radio emission; the periods of known pulsars range between 33 milliseconds and 3.75 seconds, and pulse durations range from 2 to about 150 milliseconds with longer-period pulsars generally having a longer pulse duration.
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