以下为句子列表：
英文: During measurement,the immersion period of the probe in the molten steel should no exceed 8 second.
中文: 测量时按要求控制好探头在钢水中停留的深度和时间，时间不得超过8秒。
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英文: It's pointed out that, under the condition of VIM refining, the amount of oxide inclusions residue in molten steel increases with the increased loss of deoxidizing elements, and the key of melting extra-low oxygen steel is to avoid the thermal decompositi
中文: 结果表明，在真空感应熔炼条件下，残留在钢中的氧化物夹杂数量随脱氧元素铝烧损量增加而增加，熔炼超低氧钢的关键是避免炉衬热分解；脱氧产物尺寸随脱氧元素过饱和度增加而增加；超低氧钢的大颗粒夹杂主要来自炉衬材料。
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英文: The accident occurred on April 18 in a workshop in Qinghe Special Steel Corporation, in Tieling City, when a steel ladle -- used for pouring molten steel -- suddenly sheared off from the iron rail linking it to the blast furnace.
中文: 事故发生在4月18日，铁岭市清河特钢有限公司，一个用来运送钢水的钢包，突然从连接钢包和熔炉的铁轨上滑落。
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英文: The loss of deoxidizing elements resulting from thermal decomposition of lining materials and the change of total oxygen in molten steel during VIM refining are researched.
中文: 摘要研究真空感应熔炼过程中因炉衬材料热分解造成的脱氧元素烧损及其全氧含量的变化规律。
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