pre-main-sequence spectroscopic binary是什么意思

用法例句

A Storage Structure of Two Dimension Array Based On Block Major Order;

以块为主序的二维数组的存储结构

Rape had the phenomenon of main head superiority,showed chiefly on pod number,also very significant at the seed number,TGW and quality.

油菜具有主序优势，主要表现在结角数上，在角粒数、千粒重及品质上也很显著。

Only nonzero elements beneath(or above)the diagonal of triangle matrix are stored continuously in an array of one dimension by compress rowcolumn major order.

利用一维数组对三角矩阵进行压缩存储 ,只将三角矩阵中对角线以下(或以上 )的非零元素进行连续存储 ,零元素不予存储 ;并给出行列主序压缩存储的变换算