我正在创建一个应用程序，我需要连接到数据库。

I am creating an application and I need to connect to a database.

youdao

最后，我需要跟踪与正在执行的语句关联的JDBC连接。

Finally, I need to track the JDBC connection associated with statements that are executing.

youdao

现在，我需要把J2C连接工厂绑定到生成的(部署代码的)无状态会话bean。

Now we need to bind the J2C connection factory to the generated (deploy code's) stateless session bean. To bind the JNDI name.

youdao

So if I try to rotate my 2 atoms, you see that I have to break that pi bond, because they need to be lined up so that the electron density can overlap.

如果我要试着转动两个原子，你会看到我必须要打破一个π键，因为他们需要连接起来,让那些电子能够重叠。

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