而且所有声频均有指向性,声频愈高, 指向性愈强.The higher the acoustic frequency is, the stronger its directivity is.它表现在空间生产力发展的继承性 、 指向性 、 加速性和国际性四个方面.The inheritance that its performance grows in dimensional productivity, directivity, accel...
移动整个物体,单击并拖动作用线的内中点.Note : Shift - drag constrains the move to be along the action line.线的粗细: ~~点击墨水用线的粗细.Line width: ~~ Tap the inking line size to use.点击中心点沿着作用线的轴向旋转手臂.Clicking on the center point rotates the model ar...
They returned whence they had come.他们从哪里来又回到哪里去了。Let him return to the place whence he came.让他回到他所来的地方.He knows neither his whence nor his whither.他不知道从哪里来,到哪里去....