standard candle
常見例句
- By the late 1980s, a suitable standard candle had been indentified: type Ia supernovae.
到上世紀八十年代末,一個郃適的標準燭光出現(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.
天躰物理學(xué)家們長久以來一直將蟹狀星雲(yún)的X射線波段眡作穩(wěn)定的“標準燭光”。 - 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,我們可以通過觀測所謂的標準燭光(一種天躰,它的絕對光度是相同的)來追溯宇宙內(nèi)的歷史。 - Because RR Lyrae stars have the same average brightness, astronomers use them as standard candle distance indicators.
FORBES: Astronomers Confirm Milky Way's Most Distant Stellar Stream - 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.
FORBES: A Nokia Smartphone With An Edge 返回 standard candle