vacuum blast的意思|示意

Its furnacesare not of the roaring blast variety; they are small, purring vacuum-arc furnaces that use electrical currentto re-melt steel.

他们的炼炉不是那种爆发出阵阵轰鸣声的炼炉，相反，它们是使用小型的、低噪音的、利用电流来重新融化钢铁的真空电弧熔铸炉。

The influence of vacuum cooling on the quality of cooked beef was studied as compared with conventional cooling methods including air-blast cooling and slow-air cooling.

本实验研究了真空冷却方式与冷风冷却，自然冷却方式对白煮牛肉品质的影响。