When the atomic oxygen density in the mesosphere and lower thermosphere region is derived by means of photochemical model calculations from OH nightglow emissions, a retrieval uncertainty, I.
借助OH夜气辉辐射的光化学模式，由OH夜气辉辐射反演中间层-低热层区域的原子氧数密度时，输入参数的不确定性将导致反演得到的原子氧数密度具有不确定性。
Based on the model, calculations for an actual structure of the bearings are carried out using finite element method.
根据所建模型，应用有限元法针对一具体结构进行了计算。
Based on the model, calculations for an actual structure of the bearings are carried out using finite element method.
根据所建模型，应用有限元法针对一具体结构进行了计算。
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