key board instruments
键盘乐器
以上为机器翻译结果,长、整句建议使用 人工翻译 。
Since A/D and D/A converters are the key components in seismic instruments, their circuit designs and printed circuit board (PCB) layout have a near relation with the feature of the instrument.
转换器、D/A转换器是地震仪器的核心部件,其电路和印刷板的布置及设计直接影响到仪器的精度和指标。
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