main-sequence band主序带
The Main Construction Sequence主要施工顺序
main reaction sequence star主序星
helium main-sequence氦主序
main spectral sequence主谱列
main program sequence[计] 主程序序列;主要程序步骤
main reaction sequence主序
Main Construction Sequence主要施工工序
helium m main-sequence氦主序
N（名词） a diagonal band on the Hertzsprung Russell diagram containing about 90% of all known stars; stars evolve onto and then off the band during their lifetime 主星序; 参见赫罗图简表上的斜线地带，含有百分之九十左右的已知行星，行星在其生命中演变至此地带，然后再离开
N（名词） (as modifier) 主星序的
a main-sequence star