below critical,under critical是什么意思

用法例句

The FDS(Fusion-Driven Sub-critical System) can realize the transmutation of HLW(High Level Waste),fuel production, energy breeding and tritium production by utilizing the external neutron source to make the reactor operated under the sub-critical state.

聚变中子源驱动的次临界核能系统(FDS)是根据聚变和裂变反应的各自特点，利用外源中子进入包层的次临界系统，实现增殖燃料、增益能量、产氚和嬗变核废料等功能。

A rapid micro-current amplifier used for measure the dynamic parameter of sub-critical reactor;

介绍了基于噪声分析方法,测量ADS次临界反应堆动态参数的微电流快响应放大器设计原理、线路及测试结果。

Study on the method of determining the sub-criticality of a reactor via the measurement of core neutron flux spatial distribution;

由中子注量率空间分布形状测量确定反应堆次临界度的方法研究

How to measure or monitor the sub-criticality of a subcritical reactor of ADS is a key issue of ADS research.

如何对次临界反应堆的次临界度进行监测是ADS研究中的一项重要内容。

Relationship between the α eigenvalue and the k eigenvalue in subcritical systems;

次临界系统中α本征值与k本征值的关系

Because the maintain of power level in Accelerator Driven System(ADS) relys on the neutron source generated through intensive proton beam hitting spallation target,the frequent beam trips will influence the subcritical reactor safety of ADS.

加速器驱动系统(ADS)中次临界堆芯的功率水平依靠强流质子轰击散裂靶产生的中子源来维持。

It is frequently invalidated in subcriticality because that cross section is less than 0.

一是引进一个与α有关的k(α),使计算α本征值转化成一个计算k(α)的反问题,然后确定α,使其满足k(α)=1,这种方法在次临界计算中常常因为截面出负而失效。

In the subcriticality range of 0 1$,the results ofαfrom different position are measured andαc can be extrapolated from theseα values.

5% ) μs-1,并在次缓发临界以下 0～ 1＄次临界度范围内测得多个点的 α值 ,通过外推再次得到 αc,二者在误差范围内一致。