47.74亿元可以表示为47.74 billion yuan
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The tda7850 (TDA7850) is a stereo amplifier integrated circuit (IC) that is commonly used in electronics applications like audio amplifiers and car stereo systems.
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微型传感器技术是机械制造中的核件之一,其在现代制造业中的应用越来越广泛。微型传感器具有体积小、精度高、响应快等特点,能够