If the response returns in an acceptableperiod of time, the path to the location is considered available.
如果响应是在可接受的时间周期内返回,那么就认为到此点的通道可用。
2
However, ground measurements of carbon monoxide during the period reached more than six times higher than acceptable levels in Moscow, said news reports.
但是,根据新闻报道,这一期间莫斯科地面的一氧化碳水平高于可接受水平六倍之多。
3
What are the aggregate acceptable losses over a period of time such as one year?