| 摘 要： | As a rule, the International Association of Meteorology and Atmospheric Sciences (IAMAS) requests each of her member countries to submit, every four years, a progress report on the relevant operational and research fields, and to exchange the report with other members during the International Union of Geodesy and Geophysics (IUGG) Assembly that is held every four yeas as well. During the last twenty years, the China National Committee for IAMAS has regularly composed its report. The progress report of the China National Committee
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