研究了复杂可编程逻辑器件(CPLD)在超声波流量测量系统中的应用。
The application of CPLD (complex programmable logic device) in ultrasonic flow measurement system is researched.
研究了产生超声波的机理及器件性能，分析了超声源驱动电路的组成和工作原理。
Studied the mechanism of how to produce ultrasonic and the functions of the machine, analyzed the ultrasonic driven circuit and its principle of working.
随着超声波塑料焊接技术在各行业被广泛应用，焊接系统中的重要器件——矩形焊接模具也受到了广泛的使用。
With the ultrasonic plastic welding technology is widely used in various industries, an important device in the system - rectangular welding mold has also been widely used.
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