oxygen hydrogen torch是什么意思

用法例句

The above problems were studied and technical problems of oxy-hydrogen cutting process for a large continuous casting machine were solved.

针对现有连铸机使用焦炉煤气-氧火焰切割技术存在的问题和国内氢氧火焰切割技术存在的投资高、运行成本高、切割断面小等一系列问题进行了研究,提出并解决了大型连铸机氢氧切割工艺技术问题,取得了降低钢材损失、运行成本,提高断面质量等成果。