简单的度量标准，例如所花的钱数或者当前未解决的缺陷数，有两个关键的属性。

Simple metrics, such as amount of money being spent or number of defects currently outstanding, have two key attributes.

youdao

这是必不可少的，因为我们当前未提供定义监测集键之间或者甚至不同监测集之间的关系的功能。

This is necessary because we currently don't provide the capability to define relationships between monitor set keys or even between different monitor sets.

youdao

对于从MQ服务器到设备队列管理器的消息，网关提供存储转发设备来为当前未联机的设备保存消息。

For messages going from MQ servers to device queue managers, the gateway provides a store-and-forward facility holding messages for devices that are not currently online.

youdao