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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As to nonlinear determined system, a criterion was presented in light of the linear equivalent stability principle;

对非线性确定性系统，利用稳定性的线性等价原理，提出了这一类非线性系统的稳定性判据；

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LSQR and ART algorithms are applied separately to calculate tomography for the determined system of equation, overdetermined system of equation and underdetermined system of equation.

采用弯曲射线追踪算法计算走时，分别用最小二乘QR分解算法与代数重建技术就恰定方程组、超定方程组与欠定方程组进行了成像计算。

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But we should certainly avoid heavy investment in an unsatisfactory system determined by the constraints of an unsatisfactory treaty.

CENTERFORSECURITYPOLICY: Center For Security Policy

The group determined that the system had to be easy to use, fast, reliable, easy to administer, centrally manageable and scalable.

CNN: Lockheed finally finds e-mail success

If the legal advice is that the proposals do cross into areas of individual liberty and human rights, then it is possible that it would be determined that a system of organ donation cannot be devolved.

BBC: Wales' opt-out organ donor bid 'may not be legal'