采用液态金属渗透法把碳纤维与熔融锌和锌合金制成复合材料。
The composite has been prepared by the infiltration of carbon fibres with melting zinc and the zinc alloy.
零件表面能被低熔点金属渗透以增大密度、强度、硬度、延展性和抗冲击能力。
A part surface can be infiltrated with a low melting point metal to increase density, strength, hardness, ductility and impact resistance.
企业担心过紧的监管可能会妨碍这类使用；而另一方面，环保组织称煤灰含有大量的有毒金属，会渗透污染地下水。
Businesses fear that regulation would hamper such use; environmental groups say coal ash is full of toxic metals and tends to leach into groundwater.
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