Lưu ý: Bản dịch của mục này hiện đang được kiểm tra chất lượng, vì vậy một số nội dung tạm thời chỉ hiển thị bằng tiếng Anh.
Mục từ này chưa được dịch sang ngôn ngữ của bạn, vì vậy nội dung gốc được hiển thị bên dưới.
main sequence
This term is a technical classification used in astrophysics to describe the primary stage of a star's life. It refers to the period of stability where a star maintains hydrostatic equilibrium by fusing hydrogen into helium. Stars that deviate from this band, such as red giants or white dwarfs, have evolved beyond this phase.
In a grammatical sense, the term functions as a compound noun. While it describes a category, it is typically treated as an uncountable concept or a specific region on a graph, and is rarely pluralized in scientific literature.
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Ví dụ
Most stars in the galaxy fall along the main sequence of the HR diagram.
Wait, does this star still belong to the main sequence or has it evolved into a giant?
A star spends about ninety percent of its life on the main sequence.
I wonder how long our Sun will remain on the main sequence before expanding.
The position of a star on the main sequence is determined primarily by its mass.
Once the hydrogen in the core is exhausted, the star leaves the main sequence.
Look at the plot and see how the blue stars cluster at the top of the main sequence.