twin-roll continuous casting 基本例句 连续铸轧 The high performance roll-sleeve is a key technical guarantee to achieve transnormal roll casting of aluminum alloys with twin continuous roll-casting technology.摘要满足铝合金超常铸轧工艺所需综合技术性能要求的辊套材料，是采用双辊连续铸轧方法实现铝合金超常铸轧的重要技术保障。