现有行业规格 Existing industry specifications
现行有效的牌照 existing licence
现有星行永磁减速 PMGR
现行有效的法律 the force law
现行有效 Current drawing ; Existing effective drawings ; Force drawings
运行现有查询 Run an existing query
现在没有她行吗 Now without her would it
现有勘察及运行就绪 Existing Exploration and Operational Readiness
现有罗湖开始行动 Existing LO Start Initiative
除了多出的一行以及对现有行的一个更改之外，再无其他新内容。
Other than an extra line, and a change to an existing line, there's nothing new here.
如果您尝试添加具有与现有行匹配的键值的新行，则会出现错误。
An error occurs if you try to add a new row with a key value that matches an existing row.
或者，您可以修改一个以前曾经从数据库中读取的一个现有的行，如清单 6 所示。
Or you can modify an existing row that had been read previously from the database, as in Listing 6.
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