In any case, with the availability of network, or not; no mater what the quality of the network is, good or bad; when you on the road, on the way to work, studying in the library, or resting in the cafe, even in the desert, in times of crisis when you need it, it will be right there for you, providing the information you need, to to help you out. What is required from you is only 4.5GB storage space (internal or external SD/memory card) of your a mobile device.
To make your knowledge quest easy, this application is embedded with a powerful full-text search engine. Simply with the keyword(s) you typing-in, search results could be returned to you instantly.
Please note that this App contains two parts: the first part, this App provides main user interface for your article searching and viewing; the second part, in a different package, acts as an extension of this App serving as the article database. You can run this App without needing the second part, but you can only access the first 600,000 articles.
Also, please note that the first part is a paid application, the second part is completely free.