冻结。使当前选择的物体的变换变成物体的零位置。你可以从子菜单中选择冻结移动，旋转，缩放或者所有。

Freeze. Makes the current transformations on the selected objects be the objects' zero position. You can select Translate, Rotate, Scale, or All from the submenu.

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通过对这种变换器的工作原理分析可知，主辅开关管都可以实现零电压或零电流开关，且电压、电流应力较小。

Through the operational principle it can be verified that all the switches are capable of achieving ZVS or ZCS condition, and the voltage and current stress are relatively low.

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与传统的数据长度补零逆傅里叶变换方法相比，在相同的采样分辨率条件下，该方法能有效减小计算量。

Compared with traditional inverse Fourier transform method, which used zeros padding method, at the same condition of sampling resolution, the method proposed could decrease the calculation load.

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