在这个系统的中心圆洞中放置一枚次临界的球形可裂变物质。
In a hole in the center of this system is placed a subcritical sphere of fissionable material.
他们选用这种方式进行探究是因为自我组织临界的另一个特性是：平均来说，每一次触发都是一个接一个的。
They followed this line of enquiry because another property of self-organised criticality is that each event, on average, triggers only one other.
根据监控数据显示，今年伦敦市空气粉尘浓度第36次达到危险临界值，成为了欧洲污染最严重的城市之一。
The City of London has been found to be one of the most polluted places in Europe after monitoring equipment recorded dangerous levels of minute particles for the 36th time this year.
日本在1999年就曾发生过一次4级核事故（又称“东海村核事故”——译注），当时在日本核燃料转换公司（Japan NuclearFuel Conversion）的一个燃料厂内，三名正在为反应堆准备燃料的工人引发了一次链式核反应，使反应堆达到临界状态。
Japan itself had a Level 4 accident in 1999, when three workers preparing fuel for a reactor at a Japan Nuclear Fuel Conversion plant triggered a nuclear chain reaction, called a criticality.
我们在第二次欧洲和平冥想取得了部分的成功。虽然当天有许多人参与冥想，但是人数远不足以达成临界质量。
Meditation for Europe was a partial success. Although many people participated, we were far from achieving the critical mass.
在带材制备过程中，冷拉以后不退火直接轧制，采用大的道次压下量，均有利于提高临界电流。
During preparing silve sheathed tape, rolling after cold drawing without annealing, adopting large draught perpass were both benefit improving Jc.
碰撞高度应该是预先计算好的临界高度和次临界高度，碰撞试验证实了其计算结果。
The altitudes of collisions should be calculated critical height and sub-critical height. The collision test proved the results of calculation.
利用“通量阶式递增法”测定了两种膜组件的临界通量，在此基础上考察了次临界通量下的运行特性。
Critical flux region for two membrane modules was measured by using "flux step-wise" method, and then the operating characteristics at sub-critical flux were investigated.
该关系表明，冲淤临界流量主要与含沙量成某一次方的比例关系，同时受水沙搭配关系以及边界条件的影响。
It is shown that the critical discharge depends mainly on the sediment content, the water and sediment combination, and the boundary condition.
这一次的事件冥想大获成功，而且参与冥想的人数非常接近临界质量。
Our Event Meditation was a huge success and we were very close to reaching the critical mass.
系统经一个暂态过程后达到一个临界态，其雪崩大小的概率统计分布服从幂次规律。
After a short transient time, the system reaches a critical steady state in which avalanches of activity are distributed according to power-law.
对(次)硬梁-软半空间系统，梁的波速不再是临界速度，但也存在一个最小临界速度。
For (sub -) stiff beam-soft half space systems, wave speeds in beam are not critical any longer, but there is still a minimum critical velocity.
研究表明，通过亚临界热处理可以使含有大量残留奥氏体的高铬铸铁产生二次硬化，从而提高高铬铸铁的硬度和耐磨性。
The Influence of the quenching and tempering treatment and the different subcritical treatment on microstrcture and property of a high alloy white cast iron was studied.
讨论了第一临界情形下的平面三次系统高次奇点的局部拓朴结构，并给出利用多项式系数的判断准则。
This paper discuss the locally topological structure of higher order singular point for the plane cubic system in the first critical case and give a criterion by the coefficients of polynomials.
运用临界点理论中的极小、极大方法得到一类超二次哈密顿系统的周期解的存在性的存在性定理。
Some solvability conditions of periodic solutions are obtained for a class of first order(superquadratic) non-autonomous Hamiltonian systems in light of the minimax methods of critical point theory.
该关系表明，冲淤临界流量主要与含沙量成某一次方的比例关系，同时受水沙搭配关系以及边界条件的影响。
It is shown that the critical discharge between scouring and filling mainly depends on the sediment content, the proportional relationship be tween water and sediment, and the boundary condition.
讨论了带非负扰动的临界非齐次多重调和方程多解存在性和非存在性。
This paper deals with the existence and nonexistence of solutions for a critical semilinear polyharmonic equation with a non-negative perturbation.
讨论了带非负扰动并具有第二类边值的临界非齐次多重调和方程的多解存在性和非存在性。
This paper deals with the existence and nonexistence of solutions for a critical semilinear polyharmonic equation with the second boundary and with a non-negative perturbation.
用一维粒子模拟程序研究了超短脉冲强激光与超临界密度等离子体平板作用产生的高次谐波。
Using the one-dimensional particle-in-cell simulation code, we have studied the generation and redshift of harmonics from overcritical plasma layer irradiated by ultrashort intense laser pulses.
本文阐述了600MW超临界压力锅炉垂直一次上升管圈水冷壁水动力研究的结果。
The results of study on waterwall's hydrodynamics of 600MW supercritical Unit's primary riser tube coils are presented.
在加速器驱动的次临界核能系统(简称ads)的研究中，中子散裂靶的散热是一个重要的课题。
For the study of Accelerator Driven sub critical System (ADS), the heat transfer of spallation neutron target is an important issue.
给出了驱动不同次临界度包层所需的中子源强度及其相应的物理参数。
The neutron source intensity and relevant physical parameters for driving the reactor with the different subcritical states are given.
研究表明：初始冻结强度在宏观规模析冰的一次冻结法中为非敏感参数，无法确定负温砼抗冻临界强度。
Research showed that the initial strength is not sensive under the situation of macroice-separated out. As a result, the critical strength can not be decided by it.
两种组成都位于临界相包络线的单相一侧，出现第一次接触混相。
Compositions are both located on the single-phase side of the critical tie-line and are, therefore, miscible by first contact.
研究了一个奇异的、次临界指数的半线性椭圆方程。
A semilinear elliptic equation with singular and subcritical exponent is studied.
由于这次冥想是针对地球之外的状况，所需的人数临界质量比往常还低，所以我们这一次轻轻松松地达成了临界质量。
The critical mass of the surface population required for this activation was lower because we were dealing with an off-planet situation and it was reached easily.
研究表明，通过亚临界热处理可以使含有大量残留奥氏体的高铬铸铁产生二次硬化，从而提高高铬铸铁的硬度和耐磨性。
The hardening behavior and abrasion resistance of high chromium cast iron (HCCI) containing molybdenum and vanadium subjected to sub-critical treatment were studied.
研究表明，通过亚临界热处理可以使含有大量残留奥氏体的高铬铸铁产生二次硬化，从而提高高铬铸铁的硬度和耐磨性。
The hardening behavior and abrasion resistance of high chromium cast iron (HCCI) containing molybdenum and vanadium subjected to sub-critical treatment were studied.
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