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核核心

网络nucleus

核核心

核核心

核核心

nucleus

英语四级单词 - 豆丁网 ... nuclear a. 原子核的；核心的 nucleus n. 核，核心；(原子)核 nuisance n. 讨厌的东西 ...

1

In addition , alumina is the origin of fatigue crack and thus impairs the fatigue property of bearing steels , rail steels and wheel steels.

另外，氧化铝还是疲劳裂纹的形核核心，致使轴承钢、钢轨钢和车轮钢的疲劳抗力降低。

3

the heterogeneous nucleus being less because of the higher temperature of the liquid iron , so more inoculant to be put in;

原铁液出炉温度过高，铁液异质形核核心少，孕育剂的加入量大；

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