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So for decades, astronomers have used it as a "standard candle" in the field of high-energy astrophysics.

因此几十年来，天文学家一直将其视为高能天体物理领域的“标准烛光”使用。

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Because RR Lyrae stars have the same average brightness, astronomers use them as standard candle distance indicators.

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The smoothness and clarity of the streaming video, powered by RealNetworks (nasdaq: RNWK - news - people ) software, can't hold a candle to a standard television broadcast, nor a decent Internet video stream on a PC, but it's clear that the technology for streaming video to phones is coming along.

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