Pitch and pitch coke, obtained from coal tar or from other mineral tars.

从煤焦油或其他矿物焦油所得的沥青及沥青焦。

The present paper reviews research methods, experimental equipments and main conclusions for pitch coke in the world.

本文介绍了世界各国对于沥青焦的实验室研究方法、试验装置和主要结论。

Results show that the density and the compressive strength increase with an increase of the average (particle) size of granular pitch coke.

结果表明：沥青基炭复合材料的密度和抗压强度随焦炭颗粒平均细度的增大而增加。

The effect of the average particle size of the granular pitch coke on the density and compressive strength of CRPCC materials was studied in detail.

研究了焦炭颗粒的平均细度对焦炭颗粒增强沥青基炭复合材料的密度和抗压强度的影响趋势，并从数学上分析了密度对抗压强度的影响规律。

Electrochemical intercalation of lithium into PAN based carbon fibers, petroleum coke, pitch coke and needle coke were studied by AC impedance method.

用交流阻抗法对PAN基碳纤维、石油焦、沥青焦、针状焦进行了嵌锂过程的研究。