Without a data request threshold policy, you do not know the size of the queue of data requests.

如果没有数据请求阈值策略，就无法知道数据请求队列的大小。

youdao

During queue creation, the user must specify the maximum length of the queue and the maximum size of an individual message.

在创建队列时，用户必须指定队列的最大长度和一个消息的最大大小。

youdao

The average size of the retransmit queue can be calculated from the packets scanned counter if the number of SACK options sent is also tracked at the client.

如果在客户机可以跟踪发出的SACK选项的数目，则重传队列的大小可从扫描包计数器中计算得到。

youdao

This margin depends on the size and speed of an aircraft, and re-ordering the queue can minimise the delay before all the planes get into the air (mathematicians call this the departure problem).

ECONOMIST: Algorithms