In this paper, the internal transverse cracks of continuous casting slabs of a niobium-bearing peritectic grade of steel are investigated using electron probe microanalyser and optical microscope.是什么意思_In this paper, the internal transverse cracks of continuous casting slabs of a niobium-bearing peritectic grade of steel are investigated using electron probe microanalyser and optical microscope.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句