The articulatory features that distinguish different vowel sounds are conventionally described along a two-dimensional coordinate system that naturally represents the position of the highest point of ...
The challenge of increasing the spatial resolution of an optical microscope beyond the diffraction limit can be reduced to a spectroscopy task by proper manipulation of the molecular states. The ...
当前正在显示可能无法访问的结果。
隐藏无法访问的结果