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机械工程 交流电桥 The hardware circuit included excitation source, AC bridge, preamplifier, auto-balance circuit, adjustable amplification, phase-sensitive detection and Filtering modules. 涡流检测硬件电路主要包括激励源、交流电桥、前置放大、平衡、可调增益放大、相敏检波和滤波等模块。
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This plan has already had a successful application in the reversible D. C. speed control system of the three phase full control bridge. 此方案已成功的应用于三相全控桥可逆直流调速系统中。 - 2
In 481 b. c. Xerxes built a bridge of boats here to cross the Hellespont and invade Greece. 公元前481年舍斯在此建造了跨哈利斯邦的浮桥并入侵希腊。
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