常見例句雙語例句PWB samples were subjected to the solder float test per MIL-P-55110 and then the PTHs were cross—sectioned.印制板試樣必須經(jīng)過MIL—P—55110標(biāo)準浮焊試驗，然后對金屬化孔進行剖視。 返回 per mil