The optimal mathematical model for the luffing mechanism of a plane link is constructed.

构造了平面连杆变幅机构的优化数学模型。

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Applying this method, we can only require the lower order's calculation of matrix and determinant to make the analysis of vibration for the plane link mechanism.

通过该方法，只需要进行阶次很低的矩阵和行列式计算即可完成平面连杆机构的振动分析。

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At the same time, homotopy algorithm is applied in the solution of non-linear equation of plane link curve, it enlarges the convergence range of optimization process steadily.

同时，在求解连杆曲线非线性方程组中引入同伦算法，使算法具有大范围收敛性，从而保证了优化过程的稳定收敛。

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They say that this kind of firing is unusual in the winter months and they believe there could be a link with the recent hijacking of the Indian Airlines plane by pro-Kashmiri militants.

BBC: News Online

Small cell antennas on airplanes could link to onboard phones and transmit between the ground and the plane safely.

WSJ: 'Turn Off All Electronic Devices:' And What Happens if You Don't