Another type of standard candle is a type of star called a Cepheid variable.

另一种标准烛光是一种叫做造父变星的恒星。

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His first great discovery was made when he recognized a Cepheid variable star.

他的首次重大发现产生于他认识了一颗造父变星的时候。

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It is the spiral galaxy NGC 4603, the most distant galaxy in which Cepheid variables have been found.

本图是其中一个星系：漩涡星系ngc 4603，本报告中发现造父变星的最远星系。

youdao

His first great discovery was made when he recognized a Cepheid variable star.

VOA: special.2009.04.29

Cepheid variable stars are stars whose brightness changes at regular periods.

VOA: special.2009.04.29

Cepheid is working with other firms to employ the GeneXpert technology in additional types of biothreat detection.

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Cepheid has a partnership with Northrop Grumman (nyse: NOC - news - people ) to supply the Biohazard Detection System to the U.S. Postal Service.

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Recently, Cepheid got 510(k) clearance from the U.S. Food and Drug Administration (a pre-marketing submission to demonstrate that the device to be marketed is safe and effective) for GeneXpert to work on Group B Streptococcus.

FORBES: Nanotech Takes On Homeland Terror