常見例句雙語(yǔ)例句The processes of iridescent passivation for zinc coatings and colorless chemical oxidation for die-casting aluminum alloys were introduced.介紹了壓鑄鋁合金鍍鋅彩鈍和無(wú)色化學(xué)氧化工藝。 返回 iridescent passivation