Therefore, to study the theory of Five Circuit Phases and Six Atmospheric Influences in the causes of climate change, we must break through the "qizhen".
该文提出：研究运气学说中气候变化的成因，必须突破“七政”。
The principle of arc-suppression coil with three phases and five columns , and theory of power frequency extinguishing arcing were introduced.
介绍了三相五柱式消弧线圈的工作原理，单相电弧接地过电压的工频熄弧理论。
The principle of arc-suppression coil with three phases and five columns , and theory of power frequency extinguishing arcing were introduced.
介绍了三相五柱式消弧线圈的工作原理，单相电弧接地过电压的工频熄弧理论。
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