main sequence 中文意思是什麼
main sequence
解釋
主順序-
Furthermore, we also reserch the influence of setllar age to stellar activity of late - type stars. the relation of stellar chromospheric activity and rotation of late - type main sequence stars depend on stellar spectral type
大樣本分析顯示晚型主序恆星的色球活動與恆星自轉參量的研究晚型主序恆星的色球活動與恆星自轉參量間的關系表現出對恆星光譜型的依賴。 -
In the h - r diagram below, our sun is now in the main sequence
在以下的赫羅圖中，太陽正位於主序上。 -
We expect stars with short life span are already dead. when we plot the stars of a cluster in the h - r diagram, we see the more massive stars, which are stars in the upper left, have already evolved off the main sequence
換句話說，星團內壽命短的星應該已經死去，當我們把星團內的星以赫羅圖的形式繪畫出來時，我們發覺位於圖中左上角的大質量恆星果然已經步入死亡階段，離開了主序星的行列。 -
As these luminous and massive stars exhaust their hydrogen fuel, they begin to depart from the upper end of the main sequence.
當這些亮而且質量大的恆星耗盡了氫燃料時，它們就開始從主星序上端脫離。 -
As the main-sequence mass of the star increases, the mass of the final remnant left as a white-dwarf star also increases.
在恆星在主序的質量增加時，作為白矮星留下來的最終殘骸的質量也增加。 -
Main building of the conference center has six stories, with a building area of 60. 8 thousand square meters, composed of main sequence hall, multi - function hall, international conference hall, vip reception hall, chinese and western restaurant and various sizes of conference room
會議中心主體建築六層，建築面積6 . 08萬平方米，由主入口大廳、多功能廳、國際會議廳（階梯式） 、貴賓接待廳、中西餐廳、以及各種規模的會議室組成。 -
The star used to be like the sun, a “ main sequence ” star that burns hydrogen by nuclear fusion, producing helium
該恆星和太陽一樣是一顆主星序恆星，氫元素通過核裂變生成氦元素。 -
Tams, terminal - age main sequence
終齡主序 -
Our yields increase with the mass of the progenitor main - sequence stars. massive stars ( i. e. 18m < m < 50m ) is the primary sites of the neclearsynthesis of the r - process and can explain the galaxy chemical evolution. 3. we present formula to calculat the r - process galactic chemical evolution of ba peak elements. this formula contains metallicity abundance and point out the relation of the ba peak elements and disscuss the effect of various mass supersnova. besides, our formula can be confirmed by a lot of observations
由此可以解釋以下觀測事實: （ l ） mg ， eu均產生於snh星，但質量范圍不同，在高質量（ > 20 ） eu的產量高， mg的產量（相對于太陽） ，導致暈星中eu / mg > 0 ，而產生mg的質量范圍較大，致使在厚盤的晚期較小質量超新星也開始對mg有貢獻，而這些星對eu的貢獻很小，致使在厚盤星中eu / mg < 0 ，在厚盤中eu / fe隨金屬豐度的升高而降低，仁mg / fe隨金屬豐度的升高而不變 -
When a massive proto-star approaches the main sequence, its surface temperature is low and it can not ionize the ambient gas.
當一個大質量原星接近主星序時，它的表面溫度是低的，因而不能電離周圍的氣體。 -
Zero - age main sequence
零齡主星序 -
Similar to other main sequence stars, hydrogen nuclei will be fused to helium nuclei in the core
和其他恆星一樣，大質量恆星會在主序階段把氫轉化為氦。 -
When a star is at the main sequence stage, its interior continuously fuses four hydrogen nuclei i. e. protons into one helium nucleus
在主序星階段，恆星內部不斷把四粒氫原子核即質子融合成一顆氦原子核。 -
Hydrogen to helium conversion provides the prime source of energy for stars on the main sequence.
由氫向氦的轉變是主序星能量的主要來源。 -
We will discuss what will happen to a main sequence star with a mass over about 8 solar masses
假若恆星的質量超過八個太陽質量的話，它會怎樣演化呢？ -
Post - main - sequence star
主序后星 -
Particles in the star move around rapidly due to high temperature creating a high gas pressure. together with the radiation pressure generated by the photons, they exert pressure pushing outward to balance gravity s inward pull. then, a star becomes stable and now enters the main sequence phase
恆星內部所產生的高溫，會令粒子急劇運動，產生向外的氣體壓力，再加上光子的輻射壓力抵消掉向內的引力，令恆星保持穩定，進入主序星階段。 -
The corona activity of late - type main sequence stars also depend on the stellar spectral type
晚型主序星的冕球活動也表現出對恆星光譜型的依賴性。 -
Main sequence stars have stable luminosities and sizes. to be honest, they are quite boring compare to their deaths
主序星的光度和大小十分穩定，或者你可以說相對于恆星的死亡舞曲，主序階段相當沈悶。 -
It takes about 0. 1 to 100 million years for the cloud to become a main sequence star
這個收縮過程需要十萬至一億年，才能演化成一顆主序星。
分享友人