Copyright and trade secrets have historically been the primary protection mechanisms for software intellectual property, and they are still the best solutions.
版权和商业秘密在历史上一直是软件知识产权的主要保护机制，它们仍然是最好的解决方案。
This paper studies the negative sequence directional protection (NSDP) as the primary protection of series compensated UHV transmission line.
文中对带串补的特高压线路采用负序方向高频保护作为主保护方式进行了研究。
This paper studies the negative sequence directional protection (NSDP) as the primary protection of series compensated UHV transmission line.
文中对带串补的特高压线路采用负序方向高频保护作为主保护方式进行了研究。
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