galvanization coating 基本例句 镀锌层 Progress of molybdate passivating for zinc coating is stated.本文综述了国内外镀锌层钼酸盐钝化的研究概况。 The experimental results show that the corrosion resistance of ZnCr coating is better than that of Zinc electrodeposit.试验表明,锌铬膜的耐蚀性大大超过镀锌层。