The physical mechanism about reflection of low-emission glass in near-infrared region is explained by using plasma cut-off frequency theory.
利用等离子体截止波长理论，解释了低辐射玻璃红外反射的物理机制。
The frequency theory of law strain dynamic pipe measurement is sketched. The frequency formula is deduced out. The relationship between exciting material, frequency and length of piles is reached.
简述了低应变动测桩的频率理论，推导出了频率公式，得出了激励材质与频率、所测桩长之间的关系。
Ackermann suspects that this may be because the right brain is specialized for processing low-frequency information, which is typical of speech, but this theory is still unproved.
Ackermann怀疑这可能是因为右侧大脑专门负责处理低频率的信息，说话就是很典型的一种，但这个假说还没被证实。
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