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...
溢出的湖水倾泻而下，形成了一座日式水景花园的瀑布。The loch's overflow cascades into the waterfalls of a Japanese water garden.溢出的油对野生动物来说可能是毁灭性的。An oil spill could be devastating for wildlife.被火山喷溢出的熔岩伤身体的人不多.Few people have been harmed phy...