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- period coefficient of social development 社会阶段发展系数
- By using the mean values of the periodic coefficients,the approximations of the unstable frequencies are obtained. 用周期性系数的平均值法获得了不稳定频率的近似值。
- The equations of motion with periodic coefficients for rotor/tower system are derived,and the method for analyzing the aeroelastic stability is developed. 建立了大型水平轴风轮转子／塔架耦合系统的气动弹性模型，推导了转子／塔架耦合系统周期系数运动方程，给出了气动弹性稳定性分析方法。
- That period was a bright page in the history of Chinese literature. 那个时期是中国文学史上光辉的一页。
- Let us hope that the period of this injustice will be over soon. 让我们希望这个不公正的时期很快结束吧。
- Childhood is a period of rapid growth. 幼年是生长迅速的时期。
- He consulted the chronicles of the period. 他参考了这一时期的编年史。
- Single population model with periodic coefficients 具有周期系数的单种群捕获模型
- Oscillations of First Order Delay Differential Equations with Asymptotic Periodic Coefficient in a Critical State 临界状态下具渐近周期系数的一阶时滞微分方程的振动性
- He had to decide within a given period. 他得在一定时间内作出决定。
- She has a detailed knowledge of this period. 她对这段时期的情况了解地相当详细。
- In that period auto sales hit a14-year low. 这时期汽车销售量达到14年来最低水平。
- In this period, unemployment reaches record levels. 这段时间的失业人数又达到了创纪录水平。
- Which period of history are you studying? 你正在学哪一段历史？
- On exponentially asymptotical stability of two dimensional linear differential with periodic coefficient 二维周期系的指数型一致渐进稳定
- On the Characteristic Exponent of Two Dimensional Linear Differential Equations with Periodic Coefficient 二维周期系数线性微分方程的特征指数
- Can you tell me the time period when it was stolen? 能不能告诉我大概什么时候被偷的？
- Chaucer wrote in the late mediaeval period. 乔叟写作的时代是中世纪末。
- She'll be away for an indefinite period. 她将离开一段时间，何时回来未定。
- This was the most difficult period of his life. 这是他一生中最艰难的时期。
