The mission will spend the next three-and-a-half years staring at the same stars, looking for periodic dips in brightness. 任務(wù)將花費三年半時(shí)間盯住類(lèi)似目標，搜索亮度周期性變化的恒星。
The result shows that the numerical analysis method used in our study is suitable for the periodic heat transfer process. 計算結果表明，對周期性變化的傳熱過(guò)程，采用這種數值分析方法是適宜的。
Variations in the properties of the weld occurring at short regular intervals along the weld line due to repetitive variation in welding heat. 由于焊接熱量周期變化，使得沿焊縫線(xiàn)每一固定的小間距焊縫的性能出現周期性變化。
Considering the effects of the outside factor and the periodic change of the predictand, the multivariate mixed threshold regression model with periodic components is developed. 摘要在綜合考慮預測對象的周期變化和前期外部因子的共同作用后，給出帶有周期分量的多元混合門(mén)限回歸模型。
