Weak vital registration systems, especially in the regions where most stillbirths occur, limit the availability of data and hamper the calculation of precise estimates.
生命登记系统存在的薄弱环节，尤其是在死产发生最高的地区，使数据的可用性受到限制，同时也阻碍了对精确估值的计算。
Other techniques employed include buying securities in weak markets and selling into strength in order to further limit transaction costs.
其它应用到的技术包括：在市场疲软时买进证券而在市场强劲时卖出证券，这样可以进一步地限制交易成本。
In order to get the convergence properties of the weak set-valued Amart, we firstly proved the theorem that the limit of support functions is a support function.
为了得到关于弱集值渐近鞅的收敛性质，首先证明了支撑函数列的极限亦为一支撑函数。
In the weak coupling limit the lowest-order correction to the geometric phase is derived analytically and the general case is calculated numerically.
文中推导并得到了在弱耦合极限下几何相位的最低阶修正的解析解及一般情况下的数值解。
While this research suggests that weak investor protection institutions limit earnings' usefulness, it does not address how information markets respond to these limitations.
虽然这一研究表明，投资者保护体系的不足限制收益实用性，它并没有说明怎样突破这些信息市场的限制。
The probability of detection of ultra weak bioluminescence in the photon count imaging system and limit of detection of photon image are discussed.
分析了生物超微弱发光的光子图像特点，从而看出对光子图像进行统计研究的必要。
In the limit, for very weak rock, settlement at the boundary can also occur before the separation crack.
在极限情况下，对于非常软弱的岩石，形成分离裂缝之前，也会发生边界处的沉陷。
Finally the existence of the limit cycle is obtained by using the stability theory of the weak focus.
最后根据细焦点的稳定性判断出极限环的存在性。
With the example of Suibei highway, the paper expounds the general construction method of filling the weak frozen and low liquid limit clay foundation in the area of Northeast China.
结合绥北公路建设实例，阐述东北地区弱冻低液限粘土路基填筑施工的一般方法。
The commonly used protection link has the short circuit, the overflow, the overload, has pressed, loses presses, the weak magnetism, overspeed and the limit protection and so on.
常用的保护环节有短路、过流、过载、过压、失压、弱磁、超速和极限保护等。
The accident are mainly caused by violation, misoperation, limit knowledge to the H2S hazards and weak safety awareness.
事故主要是由于违章及误操作以及对H2S的毒害认识不够、安全意识差引起的。
In this paper, the measures for solving the problem of time limit shortage and for tunnelling in soft and weak soil are discussed.
本文介绍该段重点隧道施工中如何解决工期矛盾和软弱围岩隧道施工的技术措施。
In order to limit the sink of surface and maintain the stratum stable, it's necessary to do pre-support and consolidation, when tunnels would be constructed in soft or weak geology stratum.
在软弱松散或不良地质地层中以及在城市地铁中修建隧道时，为了能够有效地限制地面沉陷，并全面地保持地层处于稳定状态，需要对地层进行超前预支护加固。
If no clear right, no strictly constraint on inner-budget and weak responsibility on the risk of exceed the time limit, it will reflect the interest rate not so sensitive.
产权不清晰，对利息内在预算约束不强，逾期风险责任弱化，对利率反映就不会灵敏。
An experimental method for determining the limit molar conductivity of weak electrolyte solution was set up, and it could be applied to the experimental teaching of physical chemistry.
目前在物理化学实验教材中，还没有测定弱电解质溶液无限稀释摩尔电导率的实验内容。
Image quality is improved. The probability of detection of ultra-weak bioluminescence in the photon count imaging system and limit of detection of photon image are discussed.
讨论了生物超微弱发光的统计分布，分析了生物超微弱发光在光子成像系统中的探测概率和光子图像的探测极限。
Because of the limit of protocol specification, the playing effect under HLA is weak. The receiving buffer plays an important role in making sure multimedia stream's playing quality.
由于协议规范的限制，HLA下进行的多媒体播放效果较差，而接收缓冲区对于保证媒体流的播放质量起着关键的作用。
Because of the limit of protocol specification, the playing effect under HLA is weak. The receiving buffer plays an important role in making sure multimedia stream's playing quality.
由于协议规范的限制，HLA下进行的多媒体播放效果较差，而接收缓冲区对于保证媒体流的播放质量起着关键的作用。
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