Objective To study of preparation technology of Stevia rebaudian effervescent tablets.

目的对甜叶菊泡腾片制备工艺进行研究。

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The study of preparation of metallic materials under microgravity condition has been paid increasing attention in recent years.

近年来微重力下制备金属材料的研究越来越引起人们的重视。

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At present, the study of preparation, properties, and influence factors of polymer material controlled release membrane was very active.

目前，国内外对于高分子控释膜的制备、性质及其影响因素的研究都十分活跃。

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Keynote has been conducting a public service study of how the major tax preparation sites, including the IRS site, are performing during their busiest season.

CNN: Sci-Tech - E-filing eases way for tardy taxpayers

Harvard professor and chair of the program Thomas Piper says the 10-day PCMPCL program comprised six classes each day as well as out-of-hours preparation and study.

CNN: Schools look to expand resources

In the framework of its ISARM project, UNESCO-IHP participated in close partnership with the French Water Academy, the International Office for Water and the French Geological Survey (BRGM) in the preparation of a methodological study, launched by the French Development Agency (AFD) in order to efficiently contribute to take up the challenges of the sustainable management of transboundary aquifers.

UNESCO: EDUCATION