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quartic
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四次的,四次式
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详细解释：
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以下为句子列表：
英文: Abstract: Considering the second nearest-neighbor interaction and cubic,quartic anharmonic interactions simultaneously, we employ the multiple scales method combined with a quasidiscreteness approximation to calculate the lattice vibration.It is shown tha
中文: 文摘:同时考虑次近邻谐振相互作用和三次方、四次方非谐相互作用，利用多重尺度结合准离散近似方法去计算晶格振动行为，发现一维非线性点阵中存在包络孤子及正扭结型包络孤子、反扭结型包络孤子，解释了自局域结构的幅度只取决于点阵中的固有参数的实验现象.
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英文: Under action of uniformly or polynomial distributed load, upper and lower critical loads of revolving shells (including conical shells, spherical shells and quartic polynomial shells) with uniform thickness, linearly, exponentially or polynomial variable
中文: 给出了均布或多项式分布荷载作用下，等厚度、线性、指数型或多项式型变厚度的圆锥壳、球壳或四次多项式型旋转壳的上、下临界荷载。
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