不同微合金化系列有效的IAF形核核心数量不同，导致HAZ组织中iaf体积分数和HAZ强韧性相应发生变化。

The number of effective IAF nuclei were inconsistent for different microalloying series, resulting the corresponding changes of the volume fraction of IAF in HAZ and strength and toughness of HAZ.

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组蛋白 H3 与 H2A，H2B，H4 共同构成了真核生物核小体的八聚体核心。

Histone H3 along with H2A, H2B, and H4 form the eukaryotic nucleosome octamer core.

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基本上也就是假如你有一个核心设计，你想能够保证固有的，核反馈的特点是能够处理，并补偿即时反应骤增。

And basically it says that if you have core a design you wanna be able to make sure that the inherent nuclear feedback characteristics can deal with and compensate for prompt reactivity excursions.

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