The paper reviews the progress of research and development on humic acid and humic acid fertilizer.

对不同腐植酸肥料（简称腐肥）在不同的磁化强度下对黄瓜苗期的生长发育的影响进行了研究。

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The paper reviews the latest some progress of research and development on the iron-bearing dust Comprehensive Utilization in China iron & steel works.

本文评述了近年来我国钢铁厂含铁烟尘综合利用研发的某些进展，进行了相关分析，并提出几篇参考文献。

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Recent progress of research and development of modified PP in China is reviewed, and the existing problems are discussed. A few Suggestions are made on further developments.

综述了我国近年来研究开发取得的一系列成果，并讨论了存在的问题，对今后的开发提出了一些建议。

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Over the past few decades, there have been steady improvements in cancer survivor rates in the U.S. as a result of extraordinary progress in research and development.

FORBES: Great Strides Made In Developing New Medicines For Cancer

Think about that: one-half of the progress of our economy is due to research and development.

NPR: Bush Promotes Competitiveness Initiative

President GEORGE W. BUSH: Do you realize that economists say that as much as half of our nation's economic growth in the last half-century is directly due to technological progress, fueled by research and development, the kind of research and development you can do right here?

NPR: Bush Promotes Competitiveness Initiative