如果没有连接，可以创建一个。
如果没有连接池，代价当然会很高，也不会建议那样做。
Without connection pooling, that is of course expensive and not recommended.
如果没有对此数据库的连接，就需要创建一个。
If you do not have a connection to the database, you need to create one.
如果没有任何连接的话，他可能会花费长达2分钟的时间。
May take upto two minutes, if there is no connection at all !
如果没有良好的智能手机策略你就不能完全的与网络连接。
You can't be fully connected without a decent smart phone strategy.
如何如果装置没有网络连接的显示数据？
How to display data if the device has no network connection?
如果它们没有连接，它们的信号不会变高。
As they are not connected, their signal level will never go high.
没有关于如果有任何连接的话。
如果没有找到有具体指定名称的连接字符串，就会抛出一个异常。
If no connection string is found with the specified name, an exception is thrown.
如果这个连接没有关闭，等一段时间重新试。
If the connection is not closed yet, wait a few minutes and try again.
如果这个连接没有关闭，等一段时间重新试。
If the connection is not closed yet, wait a few minutes and try again.
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