The periodic in-service inspection of Section IX of the Boiler Code includes weld repairs in cast metal, and pipe welds.
根据锅炉法典第ix节的要求，在使用过程中需要定期进行检查的内容包括，逐渐金属的焊缝，管道焊缝。
In section 3, the author discusses some relationships among the separabilities and the almost periodic and asymptotically almost periodic solutions of almost periodic system.
在§3中，研究一般概周期系统，讨论了其概周期解和渐近概周期解与分离性之间的某些关系。
In this, a model based on periodic structure theory is presented, it can take the cross-section deformation into consideration.
基于周期结构原理的钢轨振动模型能够考虑钢轨截面变形对振动的影响，本文给出了该模型的理论基础，并给出了算例。
In this, a model based on periodic structure theory is presented, it can take the cross-section deformation into consideration.
基于周期结构原理的钢轨振动模型能够考虑钢轨截面变形对振动的影响，本文给出了该模型的理论基础，并给出了算例。
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