parsec是什么意思

双语例句

(1)How to implement subscript operators in Parsec?

如何在秒差距实现下标操作符？

(2)Utilizing the message interaction mechanism of PARSEC, which is running environment of GloMoSim, automatization of multi-scheme comparison and batch simulation is implemented in GloMoSim.

多方案对比及批量仿真是学术研究中无线网络仿真需求的基本特点。

(3)And then you have to convince the whole world that you have actually detected something like this in the atmosphere of an extrasolar planet host star somewhere in 100 parsec away from here.

再来你必须说服整个世界，你的确侦测到像这样的物质，在太阳系外行星的宿主恒星大气中，在离这里100秒差距的地方。

释义

n.

a unit of distance used in astronomy, equal to about 3.25 light years (3.08 ×1016 metres). One parsec corresponds to the distance at which the mean radius of the earth's orbit subtends an angle of one second of arc.

秒差距（天文学距离单位，1秒差距约等于3.25光年，即3.08×1016米；1秒差距对应地球轨道平均半径对向1角秒的距离）。

词源

"early 20th cent.: blend of PARALLAX and SECOND2."