在裂变过程中，解释非对称性和非各向同性时，奇宇称形状振荡在鞍点谱中起主要作用。

The occurrence of odd-parity shape oscillations in the saddle-point spectrum plays an important role in the interpretation of asymmetry and anisotropy in the fission process.

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针对某增压柴油机振荡冷却油腔活塞的非对称结构，建立全活塞活塞销连杆小头的有限元模型；提出了振荡冷却油腔的第三类热边界条件的数学描述并进行了验证；

The FEM for the assembly parts of piston, gudgeon pin and small-end of connecting rod is constructed to investigate a diesel engine piston with an oscillating-oil-cooling channel.

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结果表明，三阶色散会引起光脉冲形状发生畸变，会在其前沿或后沿附近形成非对称的振荡结构。

The results show that the third-order dispersion generates distortion to the optical pulse shape with an unsymmetrical structure at the front or back edge.

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