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- In fact, it is common practice to express the pulsar slowdown as the period divided by the period change per year. 事实上，人们通常用周期与周期年变率之比来表示脉冲星的减速。
- Taking this as basic point, survival rate at previous period was that the survival rate at certain period divided by retention rate according to probability principle of multiplication. 以此为基点,根据乘法概率法则,将某一年龄段的生存率除以留存率可得前一年龄段的生存率,同理可反推出平均年龄以下各年龄段的生存率。
- 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。
- Picasso's early career is divided into his blue period and rose period. 毕加索的早期生涯被分为忧郁期和得意时期
- 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？
- Application of Fisher-the optimal break up in the flood period divided of Xingxingshao reservoir Fisher最优分割法在星星哨水库汛期分期划分中的应用
- 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。
- The meeting finally came to a period. 会议终于结束了。
- A period signals the end of a sentence. 句号表示一个句子结束了。
- She is publishing a history of the war period. 她有一部战争时期的历史著作正在印行。
