...4 月）执行反应炉内部 重要组件目视检查，发现No.12 喷射泵之扩散尾管(Diffuser Tail pipe) 下方， 中间环 ( Intermediate Ring )与下环(Lower Ring)间焊道DF-3B 热 影响区有裂痕指示。
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Coal tar processing is one of the most important areas of coal chemical technology and a main intermediate ring binding coal mining, metallurgy and chemical industry.
煤焦油加工是煤化工的重要内容之一，与煤炭、冶金和化工等行业密切相关，在世界范围内已有相当规模。
The pump comprises mainly of pump body, cover, impeller, shaft, seal ring, intermediate support, sealing and suspension assembly, etc.
泵主要由泵体、泵盖、叶轮、轴、密封环、中间支架、密封和悬架部件等组成。
The intermediate dye can then undergo an acid catalyzed ring opening to produce a colored dye form.
然后中间体染料可进行酸催化的开环，以产生有色染料形式。
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