短語(yǔ)詞組短語(yǔ)PTH Plated -Through-Hole technology 鍍通孔技術(shù)PTH Plated Through -Hole 導(dǎo)通孔plated -through hole 金屬化孔landless plated -through hole 無(wú)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