查询词典 shortages

Through analysis of interacting variables in acceleration of gravity and electronic balance measurement results, the method of builtin standard weight compensation and its shortages are brought forward and attach the compensation method on weight calibration.

通过分析重力加速度与电子天平测量结果的相互因素，提出了内置标准砝码的补偿方法及不足，以及外附校准砝码的补偿方法。

The development process of urban traffic signal control systems is simply reviewed, and the actuals and evolvement of traffic systems such as SCOOT, SCATS, UTOPIA, RHODES, OPAC and PRODYN are introduced. The above systems′ characteristics and shortages are analyzed. This paper points out that the keys for improving the performances of urban traffic signal control system are high quality detection data of traffic volume and traffic models.The development of urban traff...

简单回顾城市交通信号控制系统的发展过程；重点介绍SCOOT、SCATS、UTOPIA、RHODES、OPAC和PRODYN系统的现状和进展，分析其特点和不足；通过分析指出：提高城市交通控制系统性能的关键是高质量的交通量检测数据和交通模型，显然，把先进的智能控制技术、信息融合和处理技术与交通管理技术结合起来，才是城市交通信号控制系统发展的方向。

Based on varying process of generator terminal parameters after excitation fault, shortages of excitation protective principle of static stability boundary and asynchronous impedance boundary are analyzed. It proposed that excitation fault research relates to large-disturbance stability. Because dynamic power-angle character of generator after excitation fault is non-sinusoidal, there are differences between dynamic power-angle character and static state power-angle character. So it isn't ideal to protective operation result based on small-disturbance stability and static stability boundary criterion. At the same time, it proposed that asynchronous boundary impedance criterion is a constant reactive power circle moving adown j Xd′. It can ensure complete loss-of-excitation generator measuring impedance enter into the circle, but can't ensure the other condition measuring impedance including impossible losing synchronism enter. So loss-of-excitation protection would be maloperation when system voltage drops short and recovers or generator rejects load.③Based on stability principle, it puts forward setting conditions and calculation method of generator loss-of-excitation protection by direct measuring power-angle.

以励磁故障后发电机端的相关参数的变化为基础，通过对以静稳定边界和异步阻抗边界作判据的两类三种现行励磁保护在原理上存在的缺陷分析，发现：励磁故障是一个大干扰稳定性问题，励磁故障后的发电机的动态功角特性与静态功角特性有很大的差异，已远非正弦曲线，因此基于小干扰稳定性原理、以静稳定边界作判据的保护必然动作不理想；异步边界阻抗判据是一个下移j Xd′的等无功阻抗圆，它可以保证完全失磁后的发电机测量阻抗能进入该阻抗圆，但不能保证完全失磁之外的其它状态不会进入该阻抗圆，因此在系统电压短时下降或发电机突然甩负荷等情况下可能启动该保护使之误动。

About 20 years later, millions of people in India and P aki stan were in danger From grain shortages.

大约20年后，印度和巴基斯坦的数百万居民面临着粮食短缺的危机。

High Commissioner for Human Rights Louise Arbour, told delegates the high prices and shortages of food were jeopardizing the well-being and rights of countless people.

在会议开场的时候，联合国处理人权事务的高级专员 LA 告诉代表们食物的高价和短缺正危害无数的人的安康和权利。

As racially motivated violence, shortages of goods and the world's highest rate of inflation make Zimbabwe unattractive to tourists, neighboring Zambia has become the new star in southern Arica.

种族冲突，物资匮乏，再加上全球最高的通货膨胀率，这一切使得津巴布韦在游客心目中的地位一落千丈，邻国赞比亚则顺势成了南部非洲的一颗新星。

In order to overcome the shortages, a distributed and autonomous computer forensics system was presented.

针对目前取证系统的时效性不足和通信瓶颈等问题，提出了一种分布式自治型计算机取证系统。

First, for the historical reasons, the state-owned property trust bailee has some shortages in the registered capital, the trust business development, the trust business local lization as well as the trust investment company information disclosure, the state-owned property trust promotion is embarrassed.

此外，国有资产的管理，具有公益和公共管理的性质，虽然有银监会的监管和信托行业的自律监管，但更为有力的专业的国有资产信托的外部监管机构缺失。最后，由于国有资产信托涉及面极广，还存在着相关配套制度不完善等等问题。

China is energy shortages, energy shortages and rising oil prices constrain China's economic and social development.

中国是能源匮乏国家，能源短缺和油价上涨制约着中国经济和社会的发展。

While the author demonstrates these shortages, he describes the modifications for these shortages from some philosophers and methodologist and evaluates the modifications.

在 指出这些缺陷的同时，笔者阐述了一些哲学家和方法论者对它们的修正，并给予了适当的评价。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。