That variable is designed to hold an instance of a connection pool object.
该变量被设计用来保存连接池对象的一个实例。
A PatientRecord instance, or pool of instances, is created at the start of the application.
在应用程序启动时，创建了一个PatientRecord实例或者创建了实例池。
The startup bean is therefore the owner of the thread pool instance.
因此，启动Bean是线程池实例的所有者。
The getObject() method retrieves an instance of the given class from the pool.
getObject()方法从池中获取给定类的一个实例。
What happens, for instance, when the pool is empty?
例如在池为空时，会发生什么呢？
The connection manager looks for an instance of a connection pool in the application server.
连接管理器在应用服务器中查询连接池的实例。
Run the elb-describe-instance-health command to see the status of each server in the pool.
运行elb -describe - instance- health命令查看池中每个服务器的状态。
For instance, you might call someone who is afraid to dive into a pool a "chicken".
因此，你可以把一个不敢下水的人称作“小鸡”。
For instance, you might call someone who is afraid to dive into a pool a "chicken".
因此，你可以把一个不敢下水的人称作“小鸡”。
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