应用双群理论计算了反应堆堆芯物理常数。
The physical parameters of the reactor core are calculated by method of the two-group theory.
地震计是一种地震仪器，其物理常数是已知的。
A seismometer is a seismograph whose physical constants are so well known.
我们在这里只是测试物理常数，并不能假设它。
这种时钟能够帮助认出物理常数如何随着时间所作的极为微小的变化。
Such clocks could help spot tiny changes in physical constants over time.
同时，给出了产品的部分物理常数和结构分析的有关数据。
The physical contents and the structure data of the product are given as well.
注意，在物理学里面，势可以加上或者减去一个常数。
Remember, in physics, the potential is defined up to adding or subtracting a constant.
物理基础常数，由美国国家标准和技术会提供。
Fundamental physical constants By the US National Institute of Standards and Technology.
物理比例常数，是物理定理、物理定律公式中一个最常见的常数。
Proportional constant of physics is a common constant of physical theorem and physical law.
物理比例常数，是物理定理、物理定律公式中一个最常见的常数。
Proportional constant of physics is a common constant of physical theorem and physical law.
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