面对这一挑战，文章提出构建知识元语义网格平台，实现以知识元为知识单位的知识发现服务体系结构。
Affront this challenge, the new problem of knowledge element Semantic Grid of the platform of knowledge service and knowledge discovery is the design.
DuckDuckGo同样也提供即时单位换算邮政编码查询和其它可以用WolframAlpha算法和知识搜索引擎来回答的问题。
DuckDuckGo also offers instant answers for unit conversions, zip codes and other queries using the WolframAlpha computation and search engine.
而公用事业单位也没有在某块如机器人技术领域建立专门的知识或技能。
And the utilities failed to build up expertise in certain areas, such as robotics.
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