The electron densities from EISCAT observations show obviously the wellknown winter anomaly in solar maximum and a semiannual variation in solar minimum.
EISCAT观测到的电子密度显示出显著的太阳活动高年“冬季异常”和太阳活动低年半年变化等现象。
The electron densities from EISCAT observations show obviously the wellknown winter anomaly in solar maximum and a semiannual variation in solar minimum.
EISCAT观测到的电子密度显示出显著的太阳活动高年“冬季异常”和太阳活动低年半年变化等现象。
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