It is difficult to calibrate an X-probe, since the directional coefficient is coupled into the calibration curve.
对于X型探头，热线的方向系数耦合在校准曲线里，这给热线校准带来一定的困难。
This paper explained the work theory and the process of design about the parallel coupled line directional coupler.
阐述了平行耦合线定向耦合器的工作原理和设计过程。
The motor drive circuit further includes a coupling system coupled to the input device, to the first energy storage device, and to the bi-directional DC-to-DC voltage converter.
该电机驱动电路还包括耦合到输入装置、第一能量存储装置、双向DC-DC电压变换器的耦合系统。
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