短語(yǔ)詞組短語(yǔ)invar low expansion alloy 因瓦低膨脹系數(shù)鎳鐵合金low carbon alloy steels 低碳合金鋼low carbon alloy 低碳合金low sb alloy 低銻型板柵合金low co alloy 低co合金low melting alloy 易熔合金low permeability alloy 低磁導(dǎo)率合金;低導(dǎo)磁率合金low tensile alloy 低強(qiáng)度合金low antimony alloy 低銻合金 返回 low alloy