大、中型管材(The plant specializes in the production of hot-and cold-rolled flat products as well as in large-and medium-sized pipes. 该车间专门生产热轧和冷轧扁平材以及大、中型管材。)
大颗粒夹杂物(An optical microscope is used to count the number of large inclusions of over 30μm and the index of inclusion is calculated from this number. 使用光学显微镜对大于30μ m 的大型夹杂物进行计数，并据此计算出夹杂物指数。)
大块炉料偏向炉子中心(In this case, V-shaped layers will form as shown in Figure 3. Note that the larger particles segregate toward the furnace center. 如图 3 所示，在这种情况下将形成 V 形料层。值得注意的是此时大块炉料偏向炉子中心。)
