Hydrometer: An instrument used for measuring the specific gravity of a liquid or solution.
比重计：量度液体或溶液的比重的仪器。
Exact solution of a statistical model for laser beam scattering from diffusing surface has been obtained, the comparison with the approximation of center of gravity has been made.
本文对激光束在漫射表面上散射的一类统计模型给出了严格解，并与“质心近似”所得结果作了比较。
This paper makes a comprehensive and systematic study of the establishment of the earth's ellipsoidal gravity model and the solution of the boundary value problem under ellipsoidal boundary.
本文全面、系统的研究了地球重力场椭球谐模型的建立和边值问题在椭球界面下的求解情况。
On the basis of enormous statistical analysis, the author contributes an empirical formula for the purpose of facilitating the computation of the specific gravity of sodium aluminate solution.
本文在大量统计分析的基础上提出了一个计算铝酸钠溶液比重的经验公式。
The problem of gravity field recovery can be attributed to the solution of over determined system of equations.
重力场恢复最终归结为超定线性方程组的求解问题。
The problem of gravity field recovery can be attributed to the solution of over determined system of equations.
重力场恢复最终归结为超定线性方程组的求解问题。
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