量天尺 meaning in Chinese
hylocereus undatus
Examples
- We have to use quite a few distance indicators because there is no single one that can measure all the distances . this is the
利用已知而可靠量度近距离天体的量天尺，去校准量度更远距离天体的量天尺，是科学家常用的惯技。 - In recent year , astronomers found a new celestial yardstick , which allows us to measure more precisely the distances of celestial bodies billions of light - years away
近年，天文学家找到一种新的宇宙量天尺，可让我们更准确地测量远至数十亿光年外的天体距离。 - Astronomers found that certain kind of supernova outbursts could be used as a cosmic yardstick . by measuring the luminosity of these supernovae , accurate distances between the earth and the supernovae together with their host galaxies can be worked out
首先，天文学家发现某类超新星爆发可被视作宇宙的量天尺，只要测出超新星的光度，便能准确地测定超新星及其所在星系离我们多远。