The basic problem here is that everyone forgot that an unconstrained system has flexible modes AND the rigid body modes.

这里的根本问题是，人人都忘记了一个无约束系统具有弹性体模态以及刚体模态。

youdao

Based on successive unconstrained programming methods, the successive bound constrained programming algorithms for large-scale process system optimization are studied in this paper.

基于非线性约束极小化的序列无约束方法，对大规模过程系统稳态优化的序列界约束方法进行了研究。

youdao

An experiment on unconstrained (free) steady-state excitation has been made for the system mentioned by means of a transfer function analysis instrument, and impedance figure has been plotted.

作者用传递函数分析装置对上述系统进行了无约束(自由)的稳态激励试验、绘制了阻抗图。

youdao

Britain's parliamentary system, combined with a winner-takes-all voting system, creates governments with mighty central power, wonderfully unconstrained by checks and balances that would prevent the abuse of that power.

ECONOMIST: Labour��s Lords reform does not go far enough