https://www.merriam-webster.com/dictionary/complanation
COMPLANATION Definition & Meaning - Merriam-Webster
The meaning of COMPLANATION is a leveling off : flattening out.
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https://patents.google.com/patent/CN206481504U/en
CN206481504U - A kind of thin PCB complanation copper upper plate tool - Google Patents
The utility model provides a fixture for leveling the copper upper plate of a PCB thin plate, which comprises a rectangular acrylic plate, and a groove is...