查询词典 relatively closed set

In order to ensure the consistency of the closed-loop system performances, before the AFC is applied, a supervisory controller is used to drive initial tracking errors to a preset closed area, and then the AFC can drive the tracking errors of the closed-loop system to pre-specified neighborhood in the presence of unknown approximation errors of the fuzzy logic system.

为保证系统性能的一致性，在启动自适应模糊控制器前，采用监督控制将初始跟踪误差镇定到给定范围。自适应模糊控制器可在存在模糊逻辑系统逼近误差的情况下，使系统跟踪误差小于预先给定的任意常数。

In order to realize real-time control, the paper studied two kinds of closed-loop control structures such as based on scalar quantity and double closed-loop control structure, moreover established their control structure, then simulation to the double closed-loop control structure of voltage source type matrix converter. The simulation results indicate that reach the real-time control requests, the system dynamic response performance is good, the converter input output can be adjusted in the short time.

为实现电压源型阵变换器的实时控制要求，论文对基于标量控制和双闭环的两种电压源型矩阵变换器闭环控制结构进行了研究，分别建立了这两种闭环控制的控制结构，并且对电压源型矩阵变换器的双闭环控制结构进行仿真，仿真结果表明达到了实时控制的要求，系统的动态响应性能好，变换器的输入输出能在较短的时间内达到调节。

The impact of circuit process REST the main body of a book is adjusted by studying closed cycle over navar real time nature, has given a system technology out the quantitative-rization result that the index and closed cycle concern between responding to , may track the function valuation criterion as one kind of the navar closed cycle.

本文通过研究闭环调节回路过程响应时间对控制系统实时性的影响，给出了系统技术指标与闭环响应之间关系的定量化结果，可作为一种控制系统的闭环跟踪性能评价准则。

First, we consider nonholonomic chained systems with modeling error, in this section,based on back-stepping , using the so-called adding a integrator , state-scaling technique , we design discontinuous feedback law,such that the trival solution of the closed-loop systems global strong stable; Second,we consider high-order nonholonomic chained systems with modeling errors and external disturbances, in this section,using input/state-scaling and integrator backstepping methods , we design discontinuous feedback law and give out the switching strategy, such that the closed-loop systems global /C-exponential stable; Finally, we consider a class of more general power chained form systems with particular drift-terms, in this section , using Lyapunov method, we design time-varying feedback law , such that the closed -loop systems p—exponential stable.

第一部分考虑的模型为带有模型误差的高阶非完整链系统，我们运用加幂积分器、State-scaling技巧以及基于Back-stepping方法构造出不连续反馈律，从而使得所讨论系统的闭环系统的平凡解全局强稳定；第二部分考虑的模型为带有模型误差的不确定高阶非完整链系统，这一部分我们运用input／state scaling和integrator backstepping方法构造出不连续反馈律，并给出切换策略，使得所对应的闭环系统全局κ-指数稳定；第三部分考虑的系统是形式更为一般的且带有特殊形式漂移项的幂链系统，利用Lyapunov函数方法，设计出时变反馈律，从而使得相应的闭环系统ρ-指数稳定。

Spring-loaded safety valve spring force which mainly rely on the work of another spring-loaded safety valve in the closed and non-closed, generally flammable, explosive or toxic media should be used enclosed, steam or inert gas, etc., may selection is not closed, in the spring-loaded safety valve with a wrench in there and without wrench.

弹簧式安全阀主要依靠弹簧的作用力而工作，弹簧式安全阀中又有封闭和不封闭的，一般易燃、易爆或有毒的介质应选用封闭式，蒸汽或惰性气体等可以选用不封闭式，在弹簧式安全阀中还有带扳手和不带扳手的。

Housing savings, but the fixed interest rate and the capital market is relatively closed, but there is absolutely closed.

住房储蓄，但固定利率和资本市场是相对封闭的，但绝对封闭。

This three region model is different from two region model available. The behavior of the nitrogen in the volume compensator was simulated by polytrophic process similar to real variety process of gas, or constant temperature process of gas with the valve opening in the volume compensator and adiabatic process of gas with the valve closed in the volume compensator, respectively. The former were closed relatively to real variety process of gas space nature.

建模时，对氮气区分别按接近真实空间气体变化的多变过程或按容积补偿器阀门打开的等温过程和阀门关闭的绝热过程进行模拟，前者更接近真实空间气体性质的变化过程。

After all, Brazil is often described as a relatively closed economy, given that the share of exports in GDP has been less than 15% in recent years, and commodities represent only about half of Brazil's total exports, which is a relatively low ratio by Latin American standards.

不过，巴西是一个较为封闭的经济体，近年来其出口占GDP的份额一直不到15%；而且初级产品只占巴西出口总额的一半左右，在拉美国家中，这个比例并不高。

The horizontal distribution was not alike in bottom layer, the content of inorganic nitrogen was relatively high in alongshore waters of west, the content of phosphate was relatively high in alongshore waters of east and the silicate was relatively even in Laizhou Bay besides the bay mouth waters.

而底层分布却不尽相同，无机氮为湾南部近岸水域含量较高；磷酸盐为湾东部近岸水域含量较高；硅酸盐为除湾口外水域水平梯度较大外，整个湾内水域分布相对较均匀。

Bassoon on the market price is relatively stable, large-diameter seamless pipe Tianguan Baotou overhaul of the production units to ease pressure on the market, and the other relatively slow sales of the bassoon, marketing resources, a relatively small price to some extent will Bassoon the formation of support.

市场上大管价格相对稳定，天管包钢大口径无缝管生产机组的检修缓解了市场供应压力，另则大管销售相对较慢，市场资源的相对较少一定程度上会对大管价格形成支撑。

It was just a normal day of school

那只是上学的普通一天

Which is a very good reference in this issue.

这是一个在这个问题上很好的参考。