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- Results Cause-specific incidence rate of leptospirosis was 15.43 per 100 000 in average, with an epidemic interval of 10 years, with statistical significance in periodic vibration (J＝4.179，P＜0.05). 结果宜昌市38年来钩体病年发病率为15.;43/10万，流行周期为10年，周期振动有统计学上显著性意义(J＝4
- Additional to that, the vehicles" speed were calculated by the method of autocorrelation analyzing, the method of displacement-integral to eliminate the period vibration was also tried. 另外,还在利用自相关分析方法计算车辆的通过速度,利用位移积分法以消除动态周期振动载荷方面进行了一些尝试。
- The DLA model is improved to simulate the process of stochastic walking and adherence of nano-particles under periodic vibrations. 通过改进的DLA模型,重复出颗粒随机行走和粘附的动力学过程。
- Simple periodic vibration and wave motion graph demonstrator 简谐振动、波动图象演示器
- Active Isolation of Periodic Vibration From Motor to Flexible Receiver 柔性基础上马达周期振动的主动隔离
- 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。
- 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？
- Streightening the large reciprocating piston compressor under the periodic vibration 简谐振动条件下可进行大型往复活塞式压缩机找正工作
- 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。
