To calculate self and mutual inductance of coreless transformer in printed circuit board, The author offered a new method to calculate based on Neumann equation as well as testing process and circuit.
为了计算印制版空芯变压器的自感和互感，提出一个以纽曼公式为基础的新的计算方法，并给出了测试方法和测试电路。
As a standard technique of test and Design-For-Testability for testing the digital printed circuit board, Boundary-Scan technique has obtained widespread application in electronic equipment.
边界扫描技术是一种标准的数字电路测试及可测试性设计方法，它在工业界得到了广泛的应用。
The core of PCB (printed circuit board) tester is testing algorithm, which directly determines the testing functions and speed of PCB tester.
印刷电路板(简称pcb)测试机的测试算法是PC B测试机的核心，它直接决定测试机的测试功能和测试速度。
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