1. The inertia principal axes of any a point on the center inertia principal axes of a rigid body and unique three center inertia principal axes of this rigid body coincide or are parallel. 刚体中心惯量主轴上任意一点的惯量主轴与刚体的三条中心惯量主轴重合或平行。
2. This paper presents that the sum of the value register of linear transformation and the nucleus is a full and necessary condition for direct sum, and from which five inductions are obtained. 给出了线性变换的值域与核的和是直和的充要条件，并由此得到五个推论。
3. Remuneration paid to a broker on the sale or lease of property calculated as a percentage sum or agreed sum of the selling price or rental value of the real estate. 支付给一个经纪的费用，作为产业销售和租赁的报酬，通常按照售价的总和或房地产的租税价的一个百分比或同意数额。
4. Crispy fried with fire from the characteristics of Beijing-style dim sum, dim sum dumplings will be on the surface with cooking oil, the income from the fire鏊kao zhi. 香酥火烧取烧饼与京式点心的特点，将点心馅与食油和于面中，入火鏊烤炙而成。
5. The two optimal rules is minimum sum of error square and minimum sum of error absolute value. 这两种最优准则是误差平方和最小和误差绝对值和最小。
网络释义
sum up sum-up summarize summing-up 总结;
sum up sum-up summarize summing-up 总结;
sum up sum-up summarize summing-up 总结;
present sum to future sum ratio 现值与未来值比率;
Deposits bit by bit and withdraws a lump sum the remaining sum 零存整取余额;
