短语词组短語PTH Plated -Through-Hole technology 鍍通孔技術PTH Plated Through -Hole 導通孔plated -through hole 金屬化孔landless plated -through hole 無連接磐孔Copper -plated-through hole 鍍銅通孔Nu -Plated through Hole 非孔化孔 返回 plated through hole