abbr.日光反射信号，日光反射信号器
pref.表示“太阳”
n.〔测〕回照光

The helio-centric model posits that the Sun is at the center of the solar system.
日心说认为太阳位于太阳系的中心。
Helioseismology is the study of the internal structure and motion of the Sun using its waves, or oscillations.
日震学是利用太阳内部的波动或振荡来研究太阳内部结构和运动的学科。
Venus has an almost circular orbit around the helio, taking approximately 225 Earth days to complete one rotation.
金星围绕太阳的轨道几乎呈圆形，完成一次公转大约需要225个地球日。
The helio-magnetic field plays a crucial role in protecting the planets from the solar wind.
太阳磁场在保护行星免受太阳风侵害方面起着关键作用。
The helio-tail, also known as the heliotail, refers to the comet-like trail of plasma that trails behind our Sun.
日尾（也称为日冕尾）是指太阳后方类似彗星尾部的等离子体轨迹。
In ancient Greece, Helios was the personification of the Sun god.
在古希腊神话中，赫利俄斯是太阳神的化身。
NASA's Parker Solar Probe will venture closer to the helio than any spacecraft before it.
美国宇航局的帕克太阳探测器将比以往任何航天器更接近太阳。
The helio-thermal energy from the Sun is what drives photosynthesis on Earth.
来自太阳的光热能驱动了地球上的光合作用。
The term 'heliocentric' comes from the Greek words for 'Sun' (helios) and 'center' (kentron).
“日心”这一术语来源于希腊语“太阳”（helios）和“中心”（kentron）两个词。
Ancient astronomers used helio-centric principles to predict the movements of celestial bodies with increasing accuracy.
古代天文学家使用日心原则以越来越高的精确度预测天体的运动。