Objective To explore the value of meal examination in cartilaginous tracheobronchial ectopia of the esophageal wall.目的探讨食管壁内气管软骨异位症钡餐检查的价值.Ectopia plant was much less in tissue lump embedding group, and the tumors were u...
A linearization method to design biorthogonal cosine BCM filter banks is proposed.介绍了一种用于设计双正交余弦调制滤波器组的线性化方法.We derive the addition formulas for sine and cosine from the arithmetic of complex numbers.用复数算术推导了正弦,余弦的加法公式.L...
如果不想从室内看到街景,可以使用不透明玻璃。You can always use opaque glass if you need to block a street view.在疾病后期,不透明的角膜可能产生溃疡,甚至穿孔.In advanced stages the opaque corneas may ulcerate and even perforate.这个方法既适用于不透明物体,又适用于透明物体.The method app...