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苏联研制的三种燃用无烟煤屑(v~r=3.8～9.7%)的大容量旋流式燃烧器如图20、图21、图22所示。
Three kinds of large-capacity swirling burners developed by the Soviet Union to burn anthracite (v ~ r = 3.8 ~ 9.7%) are shown in Fig.20, Fig.21 and Fig.22.