The industrial tests have shown that the service life of new alloy cast ironcrucible is 2-3 times as long as ordinary grey cast ironcrucible.
工作试验结果表明,新材质制造的坩埚使用寿命是普通铸铁坩埚的2—3倍。
2
The industrial test results have shown that the service life of new low alloy cast ironcrucible is 2-3 times as long as ordinary grey cast ironcrucible.
工业试验结果表明,新材质制造的坩蜗使用寿命是普通铸铁坩埚的2 ~ 3倍。
3
At the furnaces in the centre of the compound, sparks shower down as a mechanical shovel fills a red-hot crucible with coal and iron ore; molten steel pours from another.