铸渗是一种制备金属基表面复合材料的新技术。

The cast-infiltration is a new technology for fabrication of metal matrix surface composites (MMCC).

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铸造烧结法是一种制备铁基表面复合材料的新工艺方法。

Casting sintering is a new technique by which iron-based surface composites are produced.

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本文通过离心铸造法研究了球铁基表面复合碳化钨粒子的轧辊。

This paper reports the study of the ductile iron roller recombined with tungsten carbide particles on the surface by using centrifugal casting.

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So, if you look in the blood of patients that are infected with Hepatitis B you find a lot of Hepatitis B surface subunits, proteins without the nucleic acid circulating in their blood.

因此,如果你观察一下,已经感染乙肝病毒患者的血液,你会发现许多乙肝病毒的表面亚基,以及血液循环中存在没有核酸的蛋白质

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