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- The authors discuss asymptotic effciency of MLE in asymptotic median unbiased sense under regular conditions. 本文讨论正则条件下极大似然估计(MLE)在渐近中位无偏(AMU)意义下的渐近有效性。
- TFR,sTFR and PAB can be used as useful index to the diagnosis and therapy effciency of CRF. TFR、sTFR、PAB可以作为CRF诊断和判断治疗效果的有效辅助指标
- With the help of this method, the effciency of the serialization design of three-ring reducer can be improved. 该方法可有效地提高了三环减速器系列化设计的效率。
- The grade effciency of Pa in ICU was 31.0%(92/617) in 2004 and 36.0%(257/713) in 2005,while in respiration was 23.0%(170/741) and 25.0%(530/2118). 铜绿假单胞菌在ICU的分离率从2004年的31.;0%25(92/617)上升到2005年的36
- Howeer, this improement is not solely the consequence of respiratory changes. 然而,这些改善并不是呼吸改变的单独是结果。
- The results indicate that reflectance measurements may provide a simple, fast and inexpensive tool for the screening of nitrogen use effciency of different maize genotypes. 上述结果说明,开花期前后的反射测量可以作为玉米氮效率筛选的一个简单、快速而经济的评估工具。
- Abstract: Automatic train protection(ATP)is the necessary kernel of modern railway signal system.,it is important for the safety and effciency of the train's running. 摘 要: ATP是现代铁路信号系统中不可缺少的核心部分,对列车的运行安全、提高行车效率起着重要作用。
- The effect of the alage to water treatment is analyzed.The techniques of treat alage in lake water are briefly introduced.The effciency of preoxidation treat alage is reseached. 分析了藻类对水处理的影响,简要介绍了湖泊含藻水的处理方法,研究了预氧化法处理藻类的效果。
- The combination of unit operations can develop new procedures.In the new procedures,the unit operations can accelerate each other and increase the effciency of the new procedures. 将单元操作过程相互组合、开发新的过程,在新过程中原单元操作过程能相互促进、提高过程效率,出现新的奇特效应。
- The patient died of respiratory failure two months later, because of recurrent biliptysis and bile pneumonitis. 但两个月后,病人仍因为上述症状复发及胆汁性肺炎导致呼吸衰竭而死亡。
- How to improve iulection profile,raise sweep effciency of iulected water and improve waterflood recovery factor,are the major problems that have to be settled urgently in late period of development. 如何改善注水井吸水剖面,提高注水波及系数,从而提高水驱采收率,是油田开发后期亟待解决的重大课题。
- To manage the water resources scientifically and to increase the using effciency of the water are the guarantees of the sustainable development of the social economy and environment. 保持地下水平衡和合理用水结构,实行水资源优化管理,提高水的利用率是社会经济、环境可持续发展的有力保证。
- Singie-side or double-sied automatic feeding device can be allocated according to users , requirements, so as to greatly enhance production effciency of machine and reduce labor intensity. 可按用户要求配置单面或双面自动送料装置,使机器的生产效率大幅度提高,减轻劳动强度。
- How can I persuade you of my sincerity? 我如何能够让你相信我的诚意?
- There is a vein of melancholy in his character. 他的性格中有少许忧郁的气质。
- Objective To study the clinical nursing of respiratory failure patients after withdrawing from the breath the machine. 目的探讨呼吸衰竭病人撤离呼吸机的临床护理。
- A bowl of hot chicken soup is good for you. 喝一碗热鸡汤对你有好处。
- A cloud is a mass of vapor in the sky. 云是天空中的水汽团。
- Field investigations have not found any indications of respiratory illness in close contacts of the young man. 现场调查未发现任何迹象表明在该年轻男子的密切接触者中出现呼吸道疾病。
- This strain of wheat can grow during a cold spring. 这种小麦可以在寒冷的春天生长。