虽然这些概念有的听起来有点超前，但是大部分都基于大学和公司的科学技术研究。
While some these concepts may sound over the top, most were based on science and technology in research at universities and companies.
为了实现软开关，引入超前管和滞后管的概念。
The concept of leading switches and lagging switches is introduced to realize soft-switching.
以无限大板状体为例求解全空间电场分布，提出探厚比概念以讨论超前探测极限问题。
Taking the infinite plate for instance, the distribution of electric field in full space is solved and detection-thickness ratio is presented to discuss the limit of advanced detection.
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