video image of tap stream(The major benefits of the infra-red slag detection system are providing a real time video image of the tap stream and giving an audio alarm with low maintenance, high reliability and use with easy. 红外测渣系统的主要优点是能提供出钢钢流的实时视频图像、发出音频警报，且维修量低、可靠度高、使用方便。)
metal flow pattern(LTV has used water modeling to investigate metal flow pattern in tundishes, molds and submerged entry nozzles. LTV 钢公司已利用水模试验对中间包、结晶器和浸人式水口内钢水流动模式进行了研究。)
