英语释义

• reproduction of some unicellular organisms by division of the cell into two more or less equal parts

• a nuclear reaction in which a massive nucleus splits into smaller nuclei with the simultaneous release of energy

片语

fission reactor[核] 裂变反应堆

nuclear fission[核] 核裂变；原子核分裂

fast fission快裂变

fission reaction裂变反应

centric fission着丝粒分裂

fission heat裂变热

fission calorimeter裂变量热器

slow fission慢中子裂变

fission chamber裂变电离室；分裂腔

heterolytic fission异裂反应

英汉例句

• fission bombs use highly enriched fuel.

  裂变原子弹使用高度浓缩燃料.

• a fission reaction is a lot like a table filled with jenga games, each stack of blocks standing close to another stack.

  一个裂变反应很像是一个摆满积木游戏的桌子，每一个积木堆和另一个堆相邻。

• the discovery of fission was a seed dropped on fertile ground.

  裂变的发现犹如种子落入沃土.

• for one thing, he has a master「s degree in nuclear physics and worked for decades on fusion and fission rockets for some of the world」s top aerospace companies.

  首先，他具有核物理学的硕士学位，几十年一直为世界一些顶级航空航天公司从事核聚变和分体火箭方面的工作。

• any sudden excess of neutrons will accelerate the fission reaction and increase the reactor「s power output.

  任何突然出现的过量中子数会加速裂变反应，增加反应堆能量输出。

• now the energy that we」re trying to capture is kinetic energy of these fission products.

  现在，我们能够尝试获得的能量,就是这些裂变产物的动能。

• the average fission width can be obtained from a statistical argument.

  能够从统计理论得到裂变宽度.

• few believe in fusion now, though uranium-powered fission reactors may be coming back into fashion.

  尽管核裂变反应堆可能重归流行，但是现在很少有人相信核聚变。

• and the critical safety functions are listed here, and people might have somewhat different definitions but we want to keep the fission products within the fuel as one safety function.

  临界的安全功能就列在这里，人们可能有一些不同的定义,但是我们要保持这些裂变生成物,在燃料里由于一个安全的功能。

• even though the fission had stopped, coolant is still very much required to keep the plant safe.

  尽管裂变已经停止了，但仍然需要大量的冷却剂来保证反应堆的安全。

• the fission products formed are highly radioactive.

  所生成的裂变产物具有很强的放射性.

• the fission products are generally dispersed over a large area of the globe unless there is local rainfall resulting in localized fallout.

  裂变的产物通常将散布在地球表面一片巨大的区域上，除非因为下雨产生局部核尘降。

• that fission produces a ton of energy in the form of both kinetic energy and electromagnetic radiation.

  裂变过程产生巨大的能量，能量会以动能和电磁辐射能的形式释放出来。

• so what is it that we「re ultimately trying to do in nuclear power? we want to make and capture the heat from the fission process.

  所以，那就是我们最后要尝试的,在核能方面的，我们要创造,并捕获热量，从裂变过程中。

• integrated over, and the only way you can make a fission is have material that」s fissionable, times the flux over the volume.

  乘以，你能够创造出裂变的,唯一的方式就是得到这些材料,它们是可裂变的，乘以流量除以流量。

• and then of course as part of the absorption we have a fission cross section which, as i said earlier, is what we want to focus on so we can make some power and some heat.

  当然作为吸收的一部分,我们有裂变横截面，那是，我之前说的，是我们想要关注的，所以我们可以创造,出一些动力和一些热量。

• we have a yield rate of neutrons, if a fission occurs at energy e this is the spectrum of neutron energies that are produced.

  我也有中子的收益率，如果一个裂变发生了在能量e，这是,产生的中子能量的光谱。

• all commercial nuclear power is provided by fission at the present time.

  目前所有的商用核动力都是通过核裂变产生的.

• the laboratory has designed, tested and evaluated a lightweight, low - yield fission device.

  该试验室设计, 试验和鑒定了一种轻巧 、 低当量的裂变装置.

• now what we「re gonna cover in this lecture are some basics such as cross sections, the fundamentals of the fission process.

  现在，我们将要在这节课完成的,就是一些基础像是横截面，裂变过程的基本原理。

• when the control rods are inserted into the core, they absorb neutrons and stop the fission chain reaction.

  当控制桿插入反应堆芯时，他们吸收了中子然后停止了裂变链式反应。

• when atoms split, the process is called 「 fission 」.

  原子分裂时, 其过程被称为 「 裂变 」.

• so, over time, the fission reactions will still slow down and stop.

  所以，随着时间流逝，裂变反应会慢下来并会停止。

• the many safety mechanisms of a nuclear plant focus mainly on keeping these so-called fission products out of the environment.

  核电站的众多安全机制将注意力主要集中在把这些所谓的裂变产品从自然界中清理掉。

• the amount of material produced during fission is insignificant.

  裂变时产生的物质数量是不够的.

• the fission of the cell could be inhibited with certain chemicals.

  细胞的裂变可以通过某些化学药品加以抑制.

• once the reactor」s control rods are between sections of fuel rods, how is fission slowed to where it is controllable?

  一旦反应堆的控制桿置于核燃料棒的中间了，我们应该怎么将裂变减慢到我们可控制的程度呢？

• now, what we are worried about in commercial nuclear power is our ability to harness the energy of a fission and this chart explains where that energy comes from.

  现在，我们要担心的，在商业,核能里的是，我们能够驾驭裂变能量,的能力，这个图表解释了,那个能量是从哪里来的。

• when you split a uranium 235 atom you will create what we call fission fragments.

  当你们将铀235原子分离的时候,你会创造出我们称为裂变碎片的。

• but they do not stop spontaneous fissions in fuel rods from fuel and fission products.

  但他们并没有阻止自然地发生在来自核燃料和裂变产物的燃料棒上的裂变。

• nuclear fission would have been a dramatic discovery at any time.

  在任何时候,原子核裂变都会成为引人注目的发现.