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(astronomy) the Solar System
The Solar System is composed of eight planets, including Earth.
a system of measurement
In this experiment, we will use the International System of Units.
the meridian system
He is deeply involved in the study of the meridian system.
coordinate system
We use this coordinate system to locate the position of an object.
an ecosystem (system of an ecological community and its environment)
The ecosystem of this lake is very fragile.
inertial frame of reference
In physics, the inertial frame of reference is a very important concept.
Kyūjitai form of 体系: system; organization
This system is very complex.
(astronomy) asterism (small group of stars)
Finding an asterism is a great joy for astronomers.
interstellar
Interstellar travel is still a realm of dreams for mankind.
Synonym of 流星雨 (ryūseiu, “meteor shower”)
A meteor shower poured down in the night sky, and I was breathless at its beauty.
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