然而，长轮询也有其自己的局限性。

However, long polling also has its limitations.

youdao

另一个常见的技巧是长轮询。

Another common technique is long polling.

youdao

这样就实现了长轮询。

Thus this implements a long poll.

youdao

长轮询是用于更新服务器数据的另外一种方法。

Long poll is another approach that is used to update server data.

youdao

该技术的另一种方案就是长轮询，可以避免这两个问题。

An alternative to this technique is long polling, which can avoid both these problems.

youdao

这也是为什么大多数遗留Comet解决方案简单的使用长轮询的原因。

This is why most legacy Comet solutions simply use long-polling.

youdao

这也是为什么大多数遗留Comet解决方案简单的使用长轮询的原因。

This is why most legacy Comet solutions simply use long-polling.

youdao