不过，带加热钢水包精炼及真空除气的氧气顶吹转炉工艺也可接受。？

Nevertherless, basic oxygen furnace process with heated ladle refining and vacuum degassing may also be considered as acceptable.

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研究了不同的熔体处理方法对纯铝铸锭超声波除气的影响，分析了影响超声波除气效果的原因。

The effect of melt treatment method on degassing efficiency of ultrasonically refined pure aluminum ingots was investigated. Furthermore, the mechanism of ultrasonic degassing was analyzed.

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通过比较半固态加压除气的试样在重熔前后的高度变化，建立了增强颗粒粒径与复合材料熔体表观粘度间的关系。

Comparing the height changes of composites before and after remelt which have been degassed with semisolid compression, the relation between apparent viscosity and reinforcement diameter was obtained.

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