本文评述了延迟焦中的杂质（包括金属杂质与非金属杂质）对炼铝用阳极和炼钢用石墨电极质量的影响。
In this paper, the influence of impurities (including metallic and nonmetallic impurities)of delayed pretroleum coke on the quality of anode and graphite electrode was evaluated.
本文采用图像分析的方法，系统地研究了一种优等石墨电极中针状焦晶粒的取向与其在电极中的径向位置的依赖关系。
This paper reports a systematic study on the needle-coke grain orientation as a function of radial position of a premium grade graphite electrode using image analysis.
针状焦的真密度强烈地影响着石墨电极的体积密度：真密度高的焦炭往往产生低密度的电极。
The real density of needle coke strongly influences the bulk density of graphite electrodes: a coke of high real density tends to yield low density rods.
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