目的：观察比较反复多次铸造对贵金属烤瓷合金金相结构的影响。

Objective: To study comparatively on the effect of repeated casting on the as-cast microstructures of a precious metal ceramic alloy.

youdao

目的观察贵金属烤瓷合金铸态组织成分偏析情况，为该合金性能研究提供理论依据。

Objective to study the microsegregation phenomenon in as-cast micro structure of a precious metal ceramic alloy so as to provide theoretic basis for study on this kind of alloy.

youdao

目的：研究反复熔铸对非贵金属烤瓷合金铸流率、化学成分、微观组织结构的变化的影响。

Objective: To investigate the effects of recasting on the castability, composition and microstructure of non-precious ceramic alloy.

youdao

目的：研究反复熔铸对非贵金属烤瓷合金铸流率、化学成分、微观组织结构的变化的影响。

Objective: To investigate the effects of recasting on the castability, composition and microstructure of non-precious ceramic alloy.

youdao