Now in a PWR we have essentially boron to control reactivity.
在一个压水式反应堆里，我们用硼来控制反应率。
The cruciform control rod controlling is the main method to control reactivity in the nuclear heating reactor (NHR).
核供热反应堆的过剩反应性主要靠十字形控制棒来控制。
You can also control excess reactivity by leakage.
你也能通过泄露控制剩余反应性。
Then you have to figure out, once you design basic power distribution you have to make sure you have what's called reactivity control.
然后你们需要研究出，一旦你设计了基本的，能量分布，你就必须确保，你得到了反应控制。
An effective reactivity control scheme is necessary for reducing the volume and mass of the liquid metal reactor.
为了减少液态金属反应堆的体积和重量，需要设计一种高效的反应性控制方案。
Influences of the reactivity of lime on the production of bleaching powder concentrate are introduced in this paper, including process control, raw material consumption, product quality and etc.
本文介绍了生产漂粉精的主要原料石灰的反应活性对生产的重要影响，包括过程控制、原料消耗和产品质量等。
The steady counting rates of neutron in reactor are measured by a conventional instrument(the start-up devices)to calibrate reactivity worth of a control rod.
利用常规仪器（堆控制室中的启动装置）测得反应堆中稳定的中子计数率来刻度控制棒的反应性当量。
This paper discusses the neutron absorption principle of measuring the boron concentration, which is to control the reactivity of the pressurized-water reactor.
本文叙述了应用于控制压水反应堆反应性的中子吸收法测量硼浓度原理，介绍了硼浓度的测量方法，并对硼浓度与计数率的关系曲线进行了测量。
In stratum pyramidale, stratum radiatum, stratum lacunosum of CA1, BDNF immune reactivity in NPY experimental group was higher than in control group and statistical analysis was significant.
实验组CA1区锥体细胞层、放射层及腔隙层免疫反应性均高于对照组相应各层，各组比较有显著性差异。
BDNF immune reactivity in stratum granum and stratum moleculare of DG in NPY experimental group was higher than in control group and statistical analysis was significant.
实验组DG颗粒细胞层、分子层的BDNF免疫反应性高于对照组相应各层，各组比较有显著性差异。
It has a single "hard burned" and refractory grade MgO. Material temperature is difficult to control resulting in inconsistencies that reduce reactivity, costing the end user more.
回转炉内的物料温度控制难度很大，从而导致产品质量的严重不均匀，这会造成氧化镁产品的反应活性下降、最终用户的生产成本升高。
The reactivity worth of control rods at each phase of HTR 10, including initial, running in and balance phases, has been calculated by using this method.
文中给出了HTR -10各运行阶段(包括初装堆、过渡过程中期和后期、平衡换料等时期)的控制棒的反应性当量。
The reactivity worth of control rods at each phase of HTR 10, including initial, running in and balance phases, has been calculated by using this method.
文中给出了HTR -10各运行阶段(包括初装堆、过渡过程中期和后期、平衡换料等时期)的控制棒的反应性当量。
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