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To improve most of the reactor protection devices that have shortcomings in inter-turn protection, the paper puts forward a highly sensitive, reliable inter-turn protection system, which is made up of both negative-sequence and zero-sequence power direction relays and so can solve the problem of overcompensation, undercompensation and uncertain compensation degree in inter-turn protection that is based on the compensation principle. Furthermore, according to the characteristics of different differential protection principles, the system adopts a plan of integrating these principles so as to increase the sensitivity and reliability of differential protection.

其中，论文针对大多数已投运的电抗器保护装置在电抗器匝间短路保护方面的不足，提出了具有较高灵敏性和可靠性的由负序、零序功率方向继电器共同构成的匝间保护方案，从而弥补了基于补偿原理的匝间保护存在的过补偿和欠补偿以及补偿度难整定的不足。

Based on the passivity system theory,the robust output-feedback control for a class of uncertain nonlinear systems is discussed.

基于无源系统理论，该文讨论了一类不确定非线性系统的鲁棒输出反馈控制问题。

While the absolute level of IUU catch is uncertain, there is little doubt that it remains a significant issue for the Patagonian Toothfish fishery.

而绝对水平非法渔获是不确定的，毫无疑问，这仍是一个重大的问题，为巴塔戈尼亚洋枪鱼渔业。

The study of soil degradation has become the focus of the 21st century inter- national pedology, agronomy, hydrology, environmental science and soil erosion science, however, a lot of theoretical problems and course mechanism aboutsoil degradation are uncertain hitherto.

土壤退化研究已成为21世纪国际土壤学、农学、水文学、环境科学及侵蚀学科关注的热点，但是直到今天为止有关土壤退化的许多理论问题及过程机理尚不清楚。

The study of soil degradation has become the focus of the 21st century inter- national pedology, agronomy, hydrology, environmental science and soil erosion science, however, a lot of theoretical problems and course mechanism about soil degradation are uncertain hitherto.

土壤退化研究已成为21世纪国际土壤学、农学、水文学、环境科学及侵蚀学科关注的热点，但是直到今天为止有关土壤退化的许多理论问题及过程机理尚不清楚。

But a day of reckoning, he stated crescendo with no uncertain voice, thoroughly monopolising all the conversation, was in store for mighty England, despite her power of pelf on account of her crimes.

但是靠犯罪行为取得的不义之财不论多么庞大，"他用渐强音蛮有把握地说——并垄断了座中的谈话——"强大的英国总有一天必然会遭到报应。

Uncertain what to use for bait, he wadded some pemmican into a ball, the way he had seen his father roll dough.

不知该用什么做诱饵，他把肉饼捏成一个小球，像父亲搓面团一般。

An active control method for synchronization of two uncertain chaotic systems with parameter perturbation is presented.

利用主动控制思想实现了两个具有未知参数干扰的不确定混沌系统的同步。

In addition, performances of uncertain systems with parameter random perturbation are discussed.

讨论系统H〓熵的信息论涵义，寻求基于概率描述的信息论方法与以系统鲁棒性为设计目标的H〓控制方法之间的联系，并以信息论的视角考察参数随机摄动不确定系统的控制性能，为以信息论的手段分析和设计控制系统探索了新的途径。

The performance of magnetic levitation is determined mainly by the characteristic of its controller and solving the problems of the high precision, high esponse frequency, output immune from the disturbance, the parameter perturbation and the uncertain factors from outside is very difficult. The traditional methods can not meet the needs of the system. So it has great significance to study the control method of magnetic levitation.

磁悬浮系统性能的优劣很大程度上取决于控制器的特性，高精度、高响应频率和输出不受外界干扰的特性以及磁悬浮中参数的摄动和外界不确定的干扰因素都是难以解决的棘手问题，传统控制难以满足系统要求，因此对控制方法的研究有其非常重要的意义。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！