MC 14499 was the serial display driver of BCD input and decimal output.MC14499是一种BCD码输入-十进制码输出的串行显示驱动器.Of an electronic circuit or device; having an output proportional to input; amplifying or attenuating all frequencies...
从而对人类全面认识原子的自电离过程具有重要学术价值.The above achievements have important academic values for enhancing the knowledge about atomic autoionization process.介绍了一种可调谐激光三步孤立实激发方式测量外电场中原子自电离态光谱的技术.We present a isolated core excitation m...