acoustic beam meaning in Chinese
声束
Examples
- Just under 3 feet in diameter and weighing 45 pounds , the black circular device emits an intense 15 - to 30 - degree - wide acoustic beam - - a high - pitched shrill tone similar to a smoke detector alarm - - that can easily cause permanent auditory damage at close range
仅仅在3尺之下在直径中的秤重45磅,黑色的圆形装置发出强烈的15 -达到30程度-宽的听觉光线- -一尖锐的尖锐声音明暗相似的对烟发现者警报- -那能容易地因素烫发听众席损害在结束范围。 - Numerical results show that if appropriate delay times of sources are exerted on elements of phased array , direction of acoustic beam radiated from the phased array can be steered so that the refracted compressional wave and the refracted shear wave can be excited effectively
结果表明，只要在相控线阵的各阵元之间施加合适延迟时间的激励信号，就可以调整辐射器的辐射声束的方向，以有利于激发滑行纵波和滑行横波；只要采用相对较低的频率或使用加权相控线阵，就可以增大相控线阵的辐射主瓣角宽，以利于在任意地层有效激励滑行纵波。