混合轮询允许在连接保持的情况下出现事件时立即通知。
Hybrid polling allows for immediate notification as long as the events occur when the connection is up.
当等待连接的发起方(主机a)的确认时，连接保持挂起状态。
The connection is kept in a pending state while awaiting acknowledgment from the originator of the connection, Host a.
如果要实现流风格的Comet，那么需要使连接保持开启，但是仍然刷新数据。
If you wanted to implement a streaming style of Comet, you would want to keep the connection open, but still flush the data.
中介随后将原始连接保持打开状态，并将请求以同步方式传递给目标系统的系统接口。
The Mediator then keeps the original connection open and passes the request synchronously to the System Interface of the target System.
例如，一个Web浏览器仅将一个服务器活动的HTTP连接保持预定义的特定时间。
For example, a Web browser will only keep an HTTP connection with a server alive for a certain, pre-defined time.
必须对输入线和连接保持高度关注，以确保阻抗尽可能的低于仪器的规定值。
Great care must be taken with the inputleads and connections, to keep their resistance below enr of the instrument ifpossible.
长轮询通常将连接保持一段较长的时间—通常是数秒钟，但是也可能是一分钟甚至更长。
A long poll generally keeps the connection open for a long time-usually several seconds, but it could be a minute or longer.
系统接口随后将到中介的连接保持为打开状态，并将请求以同步方式传递给目标系统，然后在相同连接上等待响应。
The System Interface then keeps the connection to the Mediator open and passes the request on synchronously to the destination System and waits for the response on the same connection.
在所考虑的离散分布控制系统中，每个可编程控制器作为一个控制结点，结点之间通过网络进行连接保持通信。
In the discrete distributed control system presented, each programmable logic controller is a control node and keeps communication with other nodes through network.
如果提供初始数据之后仍可能存在交互，那么将连接保持为打开状态，因此线程就不能释放出来，服务器也就不能为很多用户服务。
If interaction was possible after the initial data was served, and the connection was kept open, then the thread could not be released and the server would not be able to serve many users.
例如，如果在OLEDB服务通常将汇入池中的连接保持为活动状态的时间内，将不会再次使用连接对象，则就可能会希望调用这个方法。
You might want to call this method if, for example, the connection object will not be used again for the amount of time that ole DB services ordinarily keeps pooled connections active.
通过onClose处理、连接保持、消息队列、超时和重试，我们最终实现了一个可以在用户停留在网页上的时候保持其存在状态的聊天室。
With onClose handling, keep-alives, message queues, timeouts and retries, we finally will have a chat room that can maintain a users presence while they remain on the web page.
我们可以预期不断增长的设备、系统和环境保持连接，始终在线并相互交流。
We can expect that the ever-growing list of devices, systems and environments remain connected, always online and talking to each other.
防打结拉链保持你的连接线整齐，并让你心情舒畅。
Tangle resistant zipper keeps your cables in line and your mind at ease.
真正的上皮组织仅存在于通过称为紧密连接的咬合带而保持在一起的单层细胞中。
A true epithelial tissue is present only in a single layer of cells held together via occluding junctions called tight junctions.
如图19所示，在将任务移动到循环中时，它们之间的连接得到保持。
As Figure 19 shows, connections between tasks are maintained when they are moved into the loop.
另外，通过保持连接为打开状态，而不是针对各请求打开或关闭连接，响应速度快的高吞吐量的应用程序也可以实现性能提升。
Also, high throughput applications with fast response times can realize a performance gain by keeping the connections open, rather than building up and closing the connection on each request.
您需要采用另一种方式：在事件发生前(您希望向客户端发送新信息来响应它)，连接应该保持打开。
You need it the other way around: the connections should remain open until an event arises that you want to respond to by sending new information to the client.
最后，浏览器接收会话持续时间并设置一个超时以保持连接处于活跃状态。
Finally, the browser receives the session duration time and sets a timeout to keep the connection alive.
使用XML加密可以使您在操作任何类型的连接时保持消息内容的私密性，即使在处理过程中涉及到不可信的代理。
Using XML encryption lets you keep your message content secret when operating over any type of connection, even when untrusted intermediaries are involved in the processing.
每天提醒自己，幸福在于你与别人的连接中，在你保持的友谊中，在你与别人之间的爱中。
Remind yourself daily that happiness is in the connections you make, in the friendships you keep and in the love that exists between others.
在坚持使用请求/响应模型的同时，您可以使用非阻塞I/O（NIO）来保持连接的打开状态，而不需要浪费等待线程。
While sticking with the request/response model, you can use Non-Blocking I/O (NIO) to keep a connection open without wasting waiting threads.
客户端可以连接到服务器，获取几个文件，然后断开连接；客户端也可以一直保持连接，直到重新启动。
A client can connect to the server to get a few files and then disconnect, or a client can have the connection open until it reboots.
重新设置后，当前的连接可以继续保持通信；不过，所有的新连接必须用新的临时地址建立通信。
After the reset, current connections are allowed to maintain communication; however, all new connections must establish communication with the new temporary address.
最有效的方式是使用HTTP协议的 1.1版本保持连接打开，并在走出步着时让服务器把更新发送给客户端。
The most efficient way is to use the 1.1 version of the HTTP protocol to hold the connection open and to have the server send out updates to the client when moves are made.
但是保持长期连接处于打开状态也会消耗服务器资源。
But holding open long-lived connections consumes server resources too.
手机保持通话连接越难，它发出的辐射就越多。
The "harder" the phone has to work to maintain a cellular connection, the more radiation it emits.
选择此项非常重要，因为此项将保证词汇表和物理模型都导入到MetadataServer并且对象保持连接。
Selecting this is very important because this will ensure that both, the glossary and the physical model are exported to the Metadata Server and objects remain linked.
Tomcat使用NIO（无阻塞IO）来保持连接活动，无需浪费等待中的线程。
Tomcat uses NIO (Non-blocking IO) to keep the connection alive without wasting the waiting threads.
但是发生该异常之后并没有将响应发送给客户机，请求被放到处于等待状态的Continuation队列中，而HTTP连接仍然保持打开状态。
But instead of sending any response to the client as a result of the exception, the request is held in a queue of pending Continuations, and the HTTP connection is kept open.
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