反应堆

Based on the structural requirement of the Integrated Reactor of shipping dynamic plant, the traditional Steam Pressurizer has been improved, and the mathematical model of the Nitrogen Pressurizer has been built.

本论文基于船舶动力一体化反应堆的结构需要，对传统的蒸汽式稳压器进行了改进，建立了氮气稳压器调节系统的数学模型。

The PI controller which is used widely in water level control of pressurizer in reactor control system usually leads dymanic overshoot and long setting time.

现代的反应堆稳压器的水位控制大都采用的是传统的PI调节器，对于这样一个非线性和时变性的复杂控制系统，PI调节器表现出来的常常是超调量大、调节时间长等并不理想的效果。

Besides, the traditional Steam Pressurizer was used widely in the world nowadays, there are so few papers about the Nitrogen Pressurizer. In this paper the mathematical model and dynamic characteristics simulation of the Nitrogen Pressurizer have been built to create a good environment for Integrated reactor research .

由于国内外以往较多采用的是蒸汽式稳压器，有关氮气稳压器的文章较少见，本论文中所研究的氮气稳压器的数学模型和动态特性仿真，为今后一体化反应堆的研究奠定了良好的基础。

The improvement project for intelligent fuzzy controller to take the place of PI controller is advanced.This paper researches the water level control of pressurizer in reactor control system of Daya Bay Phase I, and describes the method of intelligent fuzzy control in practice.

本文提出以智能模糊控制器取代原有常规PI控制器的改进方案，并以大亚湾一期工程反应堆控制系统的稳压器水位控制为研究对象，着重阐述智能模糊控制原理在具体实践中的使用方法，最后对改造前后的系统输出进行LabVIEW仿真比较。

The Nitrogen Pressurizer have lots of characteristics, for example, small size, simple configuration, rapid response, simple manufacture technics and simple maintenance technics, so it' s very fit for the collocation of the Integrated Reactor of shipping.

由于氮气稳压器具有体积小、结构简单、动态响应快、易于制造和维护等优点，更加适用于船舶一体化反应堆的布置。

Promethium is number 61 in the periodic table of elements and finds itself most useful in nuclear reactors as an alpha emitter.

钷是元素周期表中第61号元素，在原子核反应堆中作为阿尔法放射源。

To slow down neutrons, the uranium may be put into the reactor in the shape of rods surrounded with a neutronslower such as carbon .

为使中子减慢，可以把棒状铀放进反应堆，其周围放上碳一类中子减速剂。

The uranium may be put into the reactor in the shape of rods, and the rods surrounded with a neutron-slower, or moderator

可以把铀做成棒状放在原子反应堆内，在铀棒的四周，围一层中子减速剂即节速剂。

Hazard of radiation is inevitable.

有些人争论说只要原子反应堆存在，辐射的

It is a key aspect to study security of radioactivity gas in reactor circulation.

放射性气体的安全性问题是涉及反应堆运行中必需研究的重要问题。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。