There are three pieces of software that together make up a search engine: the spider software, the index software and the query software.

有3件软件，共同构成了一个搜索引擎：蜘蛛软件，索引和查询软件的软件。

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Estimation is still somewhat of a black art in software precisely because it's difficult to understand, and therefore analyze, this complex spider web of coupling and interaction.

在软件方面，估算仍是一种玄妙的“黑色艺术”，因为对于如此复杂的耦合和交互网络，实在是难以理解，因而也难以分析。

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Google also stretches across the web like a giant spider, with a leg in everything from online search and E-mail to social networking and web-based software applications, or apps.

谷歌也在互联网上大举扩张，就像一只巨型蜘蛛，触脚遍及网络搜索、电子邮件、社交网络及网络软件应用。

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Inside the computer, software that lab members developed visualizes the spiders and determines the physics of spider interactions, creating a simulation of how virtual spiders should behave in the real world, Clark explained.

MSN: Virtual Reality Spiders Crawl Toward Phobia Treatment