存在的技术难题还很多，包括将一个防漏电的备用电池集成到心泵内，还有缩小FREE-D电子元件的体积。
Technical challenges remain, including integrating a leakproof backup battery into the device and miniaturising the FREE-D’s control electronics.
电子工业用水：集成电路、硅晶片、显示管、电极管、电路管等电子元件冲洗水。
Water for electronic industry use: the wash water of electronic components such as: integrate circuit silicon wafer display tube electrode tube and circuitry tube etc.
数据处理要用到集成电路(IC)和别的电子元件。
Data is processed using integrated circuits (IC) and other electronic components.
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