注意，SRS 名称和 ID 是任意的，而且是每个数据库本地的，但是底层的坐标系常常是根据行业特权而预定义的。
Note that SRS names and IDs are arbitrary and local to each database, but the underlying coordinate systems are often predefined, with reference to industry authorities.
XML 有一种机制，它可以限定名称以分配到不同的名称空间，如应用到不同行业的名称空间。
XML has a mechanism for qualifying names to be allocated into different namespaces, such as namespaces that apply to different industries.
尽管把通用搜索词作为关键词策略重中之重，但在许多B2B行业，单个产品或具体问题并无一套约定俗成之通用名称。
Even if you focus keyword strategy on generic search terms, in many B2B industries, there is often no agreed-upon set of generic terms-even when it comes down to a single, specific product or issue.
应用推荐