Model analysis method with cone shell element for axisymmetric shell is discussed in this paper.

本文选用锥壳单元，介绍了轴对称旋转壳模态分析方法。

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Objective:To study the anti-tumor activity of fractions from pine cone and pine nut shell.

目的 ：总结抗癌活性肽抑制肿瘤生长和转移的研究进展。

youdao

Objective:To study the anti-tumor activity of fractions from pine cone and pine nut shell.

目的 ：总结抗癌活性肽抑制肿瘤生长和转移的研究进展。

youdao