Fundamental constants such as the strength of the electromagnetic force - the so-called fine-structure constant, or alpha - get their name from the fact that they are supposedly the same everywhere.
宇宙基本常数，比如电磁力强度之类的精细结构常数，符号位“ alpha ”，它们因为被假定为不变量而得名。
Constructed a control system of the electric stove with constant flow based on EPEC 3g microprocessor for the electric stove in the electromagnetic roll-casting system.
针对电磁铸轧系统中的电加热炉，采用了EPEC 3g系列微处理器建立了电加热炉恒流量控制系统。
The electromagnetic loss property was studied by the relative dielectric constant and relative magnetic permeability of the ferrites.
并测试样品的相对介电常数和相对磁导率，研究了它们的电磁损耗特性。
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