电火花加工 (Chinese Wikipedia)

Analysis of information sources in references of the Wikipedia article "电火花加工" in Chinese language version.

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google.com

  • Dulebohn, "Tracer controlled machining by electrically induced erosion", 美國專利第3,614,372号, filed 4 December 1969, issued 19 October 1971.

sme.org

web.archive.org