Setting the value to once is useful if a constraint is static once initialized, as it will then only be evaluated once and increase efficiency.

如果一个约束在初始化之后一直是静态的，那么可以将这个值设为once，这样可以使约束只计算一次，可以提高效率。

youdao

In 1925 only 1, 100 Kings were counted at St. Andrews Bay; since then there has been a 300-fold increase in the rookery.

据1925年在圣安德鲁斯海湾的统计，这里只有1100只王企鹅；此后这块繁殖地中王企鹅的数量增加了300倍。

youdao

If the are repository use is mainly read-only operations, then increase the persistence interval to provide better performance.

如果存储库使用主要是只读性的操作，那么您可以增加持续性间隔以提供更好的性能。

youdao

Noticing the circadian pattern of Charles B's depression, Dr Wehr asked him to get through a night without sleeping, and then to increase his nightly sleep only gradually, so that for almost a week he was awake during those crucial early-morning hours.

ECONOMIST: People, like all living things, are four dimensional

We have already shown that there is nothing in its character or uses that should prevent a corresponding increase of consumption, but, on the contrary, which would rather induce a greater increase: then the only other consideration is, would the facilities of obtaining supplies have been as great?

ECONOMIST: Sugar

It then leased back properties on increase-only rental agreements.

FORBES: To Whom Do I Owe a Duty of Care?