The main support Web site contains many references to documents on these others sites, and in some cases can automatically search for relevant documents on these sites.
主要的支持Web站点中包含许多对这些其他站点中文档的引用，并且在某些情况下，可以自动地在这些站点中搜索相关的文档。
You can get online references to Ruby documentation at the main Ruby Web site, but you will find that the documentation there is a bit outdated (it is for Ruby V1.6, and the current version is 1.8.2).
可以在ruby主web站点上获得Ruby文档的在线参考，但是您会发现这里的文档有点儿过时了(它针对Ruby V1.6，而当前版本是1.8.2)。
Analogous power frequency is nowadays the main method for testing conduction resistance and other ways are used for references.
类工频法是目前测试导通电阻主要方法，其他方法可作为参考。
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