Furthermore, it will cost too much labor and money to remove the oxidation -decarbonization-layer.

同时为去除氧化脱碳层还要耗费人力、物力。

youdao

Furthermore, it will cost too much labor and money to remove the oxidation -decarbonization-layer.

同时为去除氧化脱碳层还要耗费人力、物力。

youdao