控制棒是由能够吸收中子的硼元素制成。
上平板用于吸收中子，下板可以反弹它们。
The upper plate absorbs neutrons, and the lower plate reflects them.
同时向堆芯注射可吸收中子的硼酸来作为一种附加的安全措施。
As an added safety measure, they injected neutron-absorbing boric acid into the core.
理想的纳米复合材料不仅能抗辐射损害，通过吸收中子它本身也不会变得具备放射性。
The ideal nanocomposite would not only resist radiation damage. It would also not itself become radioactive by absorbing neutrons.
硼是一种可以吸收中子的元素，中子是一种存在于所有的原子核中的亚原子粒子。
Boron is an element with the ability to absorb neutrons, the sub-atomic particles that occur in the nucleus of all atoms.
原子吸收中子的过程。原子受到激发，释放俘获伽马射线。测井中用到这种效应。
The absorption of a neutron into an atom. The atom becomes energized and releases gamma rays of capture. The effect is used in well logging.
这些控制棒，由能够吸收中子的物质——硼制成，它吸收多余的中子，使链式反应停止。
These rods, made of neutron-absorbing materials such as boron, mop up excess neutrons and quench the chain reaction.
所以，这个确认了很多的吸收的热量中子，在控制棒和水里，那差不多是热能使用。
So this identifies a number of thermal neutrons absorbed in control rods and water and that's sort of the thermal utilisation.
所以，你得到中子会进入到,热能范围里，然后这些中子,变成吸收的，不能够产生裂变。
So you have neutrons actually getting into the thermal energy range and then these neutrons become absorbed, not capable of producing fission.
如果没有穿过之前，中子就掉落到底板，那么它们会反弹到顶板，并被吸收——这样就不会在发射另一端检测到。
If they hit the bottom surface before passing through, they are reflected off and absorbed at the top - and thus are not detected at the other end of the plates.
足够多的中子就会引发进一步的裂变—不是逃走，要么撞击原子，要么被没有裂开的原子吸收—演变成自动维持的过程。
When enough of these neutronsproduce further fissions—rather than escaping, bouncing off or being absorbedby atoms that do not split apart—the process becomes self-sustaining.
平面内绕行，这个质量不是，呈放射状减小，而是，呈螺旋形减小，我们称之为中子星，周围的吸积盘，这个叫做吸收星。
They go around in the plane of the blackboard, say, and so this matter cannot fall radially in but it will fall in and spiral in and forms what we call an accretion disk around the neutron star.
但是你会有一些中子，那最后会在燃料中吸收，铀5，然后还有些可能是，这些在燃料中吸收的中子不会裂变。
But then you have some neutrons that do 235 end up being absorbed in the fuel, uranium 235 and then there's a certain likelihood that some of these neutrons absorbed in the fuel do not fission.
如果你阻止这些中子通过泄露逃跑，它们之后能够，变成在铀238里能吸收的。
And if you keep these neutrons from escaping through leakage they then become available to become absorbed in uranium 238.
我们需要理解，哪种材料，需要进入到燃料里，例如覆盖层，在内部结构中，你可能是吸收器，那会将中子除去。
We need to understand what kinds of other materials need to go in the fuel such as the cladding, the internal structures that could be absorbers that will take away neutrons.
运气好的话，这类微中子将比地球外来的同伴们具有合适的能量水平，更常被岩石吸收。
As luck would have it, these tend to have about the right level of energy to be absorbed by rock more often than their extraterrestrial counterparts.
当最普通的铁（56Fe）的同位素吸收了一个中子，生成物无放射性。
When the commonest isotope of iron (56Fe) absorbs a neutron, the result is not radioactive.
该装置由驱动机构、固体中子吸收体、控制系统组成。
The device consists of drive machine, neutron absorber and control system.
吸收一个中子转变成电子。
海水中加入了硼酸，这是为了吸收掉反应堆控制棒中逸出的中子。
The sea water was also laced with boric acid, which can soak up stray neutrons that the control rods miss.
本文介绍我们研制的中子吸收剂量量热计的原理、结构及其测量系统。
In this paper the principle, structure and measuring systems of a neutron absorbed dose calorimeter are described.
对于压水堆燃料组件而言，栅格稠密、几何形状复杂，对中子的吸收较强。
Considering fuel assembly for PWR, it is possessed of dense lattice, complex geometry and strong absorption of neutron.
通过由电磁阀组成的控制单元，控制注入步进缸的流量，使缸外套作步进运动，拖动中子吸收元件；
The outer tube of the cylinder will be moving step by step by controlling flow, driving the neutron absorber and controlling nuclear reaction.
由于锆4合金具有低的中子吸收截面，良好的抗腐蚀能力、高强度以及延展性好的特点，被广泛用于压水堆作为核燃料棒的包壳材料。
Zircaloy - 4 is generally used as fuel tubes in pressurized water reactors because of it " s low neutron absorption cross - section, excellent corrosion resistance, good strength and ductility".
海水里混合了硼酸，用以吸收控制棒没有吸收的多余中子。
The seawater was also laced with boric acid, to soak up stray neutrons that the control rods missed.
在实际工作中，测量农作物的中子吸收剂量是比较困难的。
In practical word, measuring neutron dose absorbed by crops is relatively difficult.
反应中，可裂变物的原子核吸收一个中子后发生裂变并释放出两三个中子。
Reaction, the nuclei of the fissile material after absorbing a neutron fission and release two or three neutrons.
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。
This paper discusses the neutron absorption principle of measuring the boron concentration, which is to control the reactivity of the pressurized-water reactor.
核裂变却是一个铀核吸收一个中子，而不是其它过程。
Nuclear fission, a process whereby a uranium nucleus absorbs a neutron, is not.
你能够正确地减慢中子，通过将它们散射，用一个恰当的，慢化剂，这样它们就不会损耗或者被吸收。
And that you can appropriately slow down the neutrons by scattering them with an appropriate moderator such that they're not lost or absorbed.
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