第二次反应为形核孕育和爆发性反应二个阶段。

The second reaction consists of nucleation pregnant and exploded reaction stages.

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其生长机理可以用对称性的形核生长模型来解释。

Their growth mechanism could be explained by symmetrical nucleation and growth model.

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形核期（组建一个强有力的班委，形成班级核心）；

The period to organize the core of the class committee.

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它又细又长，有一个长梭形细胞核。

This is a long, thin cell with an elongated nucleus.

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细胞核呈长梭形。

Their nuclei tend to be long and stringy.

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细胞核呈长梭形。

Their nuclei tend to be long and stringy.

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