这个焊口以宏观检查发现明显的气孔和超长的咬边。
This welded seam is found an obvious air hole and an unqualified undercut with macroscopic check.
结果表明：焦炭气孔壁最基本单元——微晶结构是影响焦炭宏观性能的最本质因素。
The results show that the basic influencing factor on coke property is the structure of crystallite, as the basic unit of pore wall of coke.
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