The International Ionosphere Reference (IRI) model, as an empirical one, can reach 60 percent of the correcting effect.
国际电离层参考模型IRI的改正精度一般可以达到60％的效果；
The International Ionosphere Reference (IRI) model, as an empirical one, can reach 60 percent of the correcting effect.
国际电离层参考模型IRI的改正精度一般可以达到60％的效果；
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