In traditional ultrasound, a doctor or technician places a handheld deice on the skin that sends high-frequency sound wa在传统超声中，医生或技术人员把手持式器件置于皮肤表面，它可以向体内发射高频声波。
Typically, the programmable deice is inserted into a socket on the deice programmer and the contents of a memory buffer 典型地，可编程设备被插到设备编程器的接口上，接着内存缓存器中的内容被传送到它里面。