• 轴向拉伸下扶手椅纳米仍然良好的导体费米、费米费米面处有效质量发生了变化

    It is found that under little axial strain, armchair carbon nanotubes are still conductors, but Fermi wave vector, Fermi dot and the effective mass near Fermi face are changed.

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  • 介绍了螺旋斜置线接触设计方法经验公式设计法)。

    The article introduces the design methods of contact roller of internal press roller of forming machine of SSAW pipe mill(experience formula design).

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  • 采用图案电极的静电聚焦静电偏转(SS)摄像具有功耗扫描频率可变、分辨率体积重量轻等优点。

    All electronic SS type camera tube is characterized by its low expense of power, variable scan frequency, high resolution, small size and light weight.

    youdao

  • 提出把分为管型管型两个

    The tubular adenocarcinoma may be divided into two subtypes: the large tubular adenocarcinoma and the small tubular adenocarcinoma.

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  • 采用防水加速度计,不同工况下测定洗涤冷却振动信号,并用变换分析信号;讨论了表观静态液位功率影响,分析了冷却振动的原因。

    The effect of superficial gas velocity and static water height on the wavelet power spectrum is dis- cussed and the vibration mechanism of the tube is analyzed.

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  • 水肿炎症细胞浸润部分上皮细胞变性坏死并见管型死亡率2 0 %。

    The histologic changes of renal tissue were interstitial edema with inflammatory cellular infiltration, denaturalization and necrosis in some tubular epithelia. LPS caused 20% rats death.

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  • 物理性能树胶沉积物填体丰富射线纹孔轴向薄壁组织为聚翼状,带状常见

    Physical properties: a single scattering holes, including gum sediments, tylosis rich, catheter and ray pits between small, axial parenchyma as paratracheal type, main poly of, ribbon is also common.

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  • 圆形管型可以方便的进行密封,而且外形重量轻寿命

    A gun body is a circular straight pipe which can be convenient to be fully sealed, however, it has the advantages of small appearance, light in weight and long lifetime.

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  • 圆形管型可以方便的进行密封,而且外形重量轻寿命

    A gun body is a circular straight pipe which can be convenient to be fully sealed, however, it has the advantages of small appearance, light in weight and long lifetime.

    youdao

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