Probability of cascade fission was studied within frame of statistical liquid-drop model and compared with result of ternary fission experiment,it increases with exited energy of compound nuclear system or mass of fission fragment increasing.
用统计模型分析级联裂变，假设复合核首先分裂为两裂变碎片，其质量分布与实验分布一致，跟踪所有质量上可能的裂变碎片和所有能量上可能的衰变过程，统计裂变碎片再次裂变的几率，证明级联裂变模式基本上与三分裂的实验相符，复合核系统的激发能越高，裂片的质量越大，再裂的几率也就越大。
The spatial arrangement of fissionable and nonfissionable materials in a nuclear reactor.
栅格在核反应中可裂变和不可裂变的物质的空间排列
To produce(fissionable material) in a breeder reactor.
产生裂变的物质增殖，指在增殖反应堆里产生（可裂变的物质）
the commonest isotope of uranium; it is not fissionable but when irradiated with neutrons it produces fissionable plutonium 239.
铀最常见的同位素，不能裂变，但与中子一起被照射后会产生可裂变的钚。
Such fast neutrons have little chance of being captured by the fissible uranium.
这种快速运动的中子被可裂变的铀捕获的机会很少。
(i) relating to fissionable materials or the materials from which they are derived;
(1)涉及可裂变物质或从可裂变物质衍生的物质；
Fissionable material used in a nuclear reactor.
可裂变物质用在核反应堆中的可分裂性材料
Uranium fission may be accomplished by either fast or slow neutrons.
铀的裂变可用快中子或慢中子来完成。
split-stator variable capacitor
分裂定片可变电容器
variable optical beamsplitter
可变光学射束分裂器
fissionable material production reactor
可裂变物质生产反应堆
Damage also can result from mistakes before cells pide.
另外，细胞裂变前的错误也可能导致DNA被破坏。
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。
fission fusion fission bomb
裂变 聚变 裂变弹
activation energy for fission
裂变临界能量裂变的激发能量
The hybrid breeders can provide plenty of fissile material for PWR or FBR.
聚变-裂变混合堆可以为压水堆或快堆提供充足的核燃料。
Although power fission is a bad phenomenon, power adjustment can reduce and remedy the negative influence brought about by power fission.
权力裂变虽是不良现象，但通过权力调整可以减少、弥补权力裂变产生的不利影响。
To add nonfissionable matter to(fissionable material)so as to prevent use in an atomic weapon.
使（核材料）中毒（向可裂变材料中）加入不可裂变物质以防止（这种可裂变物质）用于原子核武器
By way of suitable heat treatment, the tensile fracture morphology changes from brittle intercrystalline fracture to dimple fracture, so the strength and ductility of the alloy is increased.
采用适当的热处理工艺可使合金强韧化 ,拉伸断口由脆性的沿晶断裂变为韧窝状断裂。