花球是白色光滑的半球状结构，内部是短缩的分枝，表面是大量增生的分生组织。
Cauliflower curd is a white smooth semi-spherical structure, with shortened branches inside and a mass of proliferated meristems outside as surface.
通过在中硅耐热铸铁中添加不同组合的合金元素稀土、铜、钛使其合金化，经过孕育和球化处理，得到铁素体+珠光体+球状石墨的金相组织。
Adding different alloy combination of re, copper and titanium, then through gestation and nodulizing disposal, we got the fine texture of ferrite pearlite and spheroidal graphite.
通过试验分析，首次在灰铸铁型材断面上观察到球状石墨的带状区，并对这种带状组织及成因进行了分析探讨。
This paper analyses the band structure with nodular graphite that was first found on the cross section of the gray iron bar in the experiment.
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