You can provide the service during specific times of day (see the access_times option) or only if demand for the machine measured by the load average is below a threshold.

可以只在一天中的特定时间段提供服务(access_times选项)，或者只在机器的负载(以平均负载为准)低于阈值时提供服务。

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Each day that goes by without full electrical service represents a huge financial loss, not only for the businesses and corporate operations based in Houston, but for the entire country.

在还没有全面恢复供电前，每一天都会对休斯顿的商家和企业，甚至对全美国造成巨大的财政损失。

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March 11, 2007-roof-top water storage tanks are ubiquitous in Amman, Jordan, where water service lasts only two hours a day.

2007年3月11日—在约旦的安曼市，由于每天只有两小时的供水服务，因此到处可见屋顶蓄水罐。

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But earlier in the day, the Queen was forced to pull out of the annual Commonwealth Day service at Westminster Abbey, for only the second time since becoming monarch.

BBC: Queen cancels more engagements

When Montage introduced Surrender earlier this year, the only available service was a single day, with a minimum of two hours.

FORBES: Wave the White Towel

But service is not something we should only do on a designated day in January.

WHITEHOUSE: Service as a Life and Legacy