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The affect from the fission spectrum and the differences between the transport approximation, P0, P1 and P3 approximation have been studied by the MCMG code. 利用MCMG程序还研究了裂变谱对临界计算的影响，比较了输运近似、P0、P1及P3近似计算结果的差异。
Simulations show by this method we can precisely estimate time delay for narrow band and line spectrum source in low SNR. 通过计算仿真结果证明这种方法对低信噪比下窄带和单频信号具有较高时延估计精度。
The Chandra Observations of the Flat Spectrum Source NGC 526A “平谱源”NGC526A的Chandra观测(英文)
The news comes from a reliable source. 这消息来自可靠的来源。
THE EFFECT OF VECTOR FISSION SPECTRUM AND MATRIX FISSION SPECTRUM ON THE CRITICAL CALCULATION 向量裂变谱与矩阵裂变谱对临界计算的影响
The discovery of the nuclear fission is a new departure in physics. 核分子分裂的发现是物理学上的一个新起点。
The survey covered a broad spectrum of topic. 这本简史涉及的话题范围很广。
My wages are the principal source of my income. 薪金是我收入的主要来源。
Solar energy is a new kind of source of energy. 太阳能是一种新型能源。
The sun is the ultimate source of energy. 太阳是能量的最基本来源。
fission spectrum 裂变谱
A source of irritation or annoyance. 令人生气的事或者引起烦恼之事
The groundwork or source of something. 基础，根源某事物的基础工作或根源
Where is the source of the Rhine? 莱茵河发源于何处？
Red and violet are at opposite ends of the spectrum. 红色和紫色位于光谱相对的两端。
He's been a source of discord and worry. 他成为不和和烦恼的根源。
When atoms split, the process is called "fission". 原子分裂时，其过程被称为“裂变”。
A source of harassment, annoyance, or pain. 使人痛苦的东西骚扰，烦恼或痛苦的来源
Is the water polluted at source or further downstream? 河水是在源头还是在流出之後受到污染的？
Fission bombs use highly enriched fuel. 裂变原子弹使用高度浓缩燃料。