U.S.A. 105, 9477(2008).[Abstract/Free Full Text]

Liu，S.Li，Z. Ouyang，C‧Tam，X. Chen，《美国科学院院刊》2008年105卷第9477页 [文摘/全文文本]

youdao

First, I provide a full-text RSS feed, and at least for now it's ad-free.

首先，我为你们提供了一个免费的RSS订阅源，而且目前还是没有广告的。

youdao

Free text retrieval (full text retrieval) systems locate records based on searching their content.

不限格式的内文检索(全文检索)系统是基于内容搜寻而找出档案。

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Free, full text, quality controlled scientific and scholarly journals, covering all subjects and many languages.

UNESCO: Global Open Access Portal