standard candle

常見(jiàn)例句

By the late 1980s, a suitable standard candle had been indentified: type Ia supernovae.
到上世紀(jì)八十年代末，一個(gè)合適的標(biāo)準(zhǔn)燭光出現(xiàn)了，它就是Ia型超新星。
Astrophysicists have long thought of the Crab Nebula as a steady “standard candle” in X-ray wavelengths.
天體物理學(xué)家們長(zhǎng)久以來(lái)一直將蟹狀星云的X射線波段視作穩(wěn)定的“標(biāo)準(zhǔn)燭光”。
In principle, one can trace that history back in cosmic time by observing a so-called standard candle, a class of astronomical object whose intrinsic luminosity is uniform.
原理上，我們可以通過(guò)觀測(cè)所謂的標(biāo)準(zhǔn)燭光（一種天體，它的絕對(duì)光度是相同的）來(lái)追溯宇宙內(nèi)的歷史。

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