Analog electronic technique is recognized as the most difficult course in electronic fundamental courses.
《模拟电子技术》被公认为是电子基础课群中难度最大的课程。
It is difficult to avoid technique problem for drill eccentricity in hole machining all along.
钻孔偏心一直是孔加工中难以避免的技术难题。
It is difficult to avoid technique problem for drill eccentricity in hole machining all along.
钻孔偏心一直是孔加工中难以避免的技术难题。
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