The result showed that, along with the prolonged preheating period, lower nucleation amount but larger crystal size of diamond was obtained.
得到了随预热处理时间延长，金刚石产量降低，粒度增粗、成核数量减少的结果。
It is put forward that, diamond nucleation amount can be controlled by controlling the growth of recrystallized graphite during the preheating period.
进一步指出在预热处理中可以通过控制再结晶石墨的生长，来达到控制金刚石核量的目的。
The results show that the more enhancing the bubble nucleation and the larger the amount of the foaming agent, the smaller the bubble cell size.
研究结果表明：气泡成核数越大，物理发泡剂的含量越高，泡孔半径越小；
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