国内在这些专用集成电路的研制工作中所面临的主要困难，是高耐压高频结型场效应对管的工艺制作。
A big challenge to the development of this type of ASICs is the fabrication process for high-voltage, high-frequency pair JFETs.
国内在汉语拼音到口型的变换方面还没有相应的研究。
No internal research has been done in the aspect of transformation from Chinese phoneme to lip motion.
同时，作为一个专门为护理工作提供的平台系统，将填补国内在此领域的空白。
At the same time, as a specialized care system to provide a platform, will fill the gaps in this area.
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