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。
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。
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。
And if we consume it at the present rate, 3% or increase maybe by only three percent per year, then we won't have any left in less than 100 years.
如果我们继续以现在的速度消耗下去，或者也许每年只增长,则我们在不到100年的时间里,将变得一无所有。
Sales: : Then I think you can only increase a memory-chip for it.
销售：那我想您就只能给它增加一个个内存条了。
Expansion of production scale, while the same proportion if the cost of increased overhead, then not only can increase profitability, while also facing the same industry, the competitive threat.
在生产经营规模扩张的同时，如果管理费用成本同比例上升，那么非但无法提高利润率，同时还会面临同行业企业的竞争威胁。
The only way speculation can have a persistent effect on oil prices, then, is if it leads to physical hoarding - an increase in private inventories of black gunk.
投机行为能够对油价具有持续效应的唯一方法就是(如果它会导致实际的囤积行为的话)，增加这种黑色粘滑液体的私人库存。
Then, it can not only enhance the efficiency of the practice operation, but also increase certain accuracy.
如此一来，既提高了实践操作的效率，也增加了一定的准确度。
The placebo group showed a slight increase of activity up to the 5th day. Only then radioactivity began to decline.
而安慰剂组直至试验的第五天放射活性仍有轻微的增加，从那以后放射活性才开始下降。
Only the movement muscle will only then increase to the grape pond's ingestion.
只有运动了的肌肉对葡萄塘的摄取才会增加。
Only then eats the corn, the digestion absorption, can increase breaks off " he corn"the internal energy, realized that the successful happiness, enjoys the creation the joy;
只有把玉米吃掉，消化吸收，才能增加掰“玉米” 者的内能，体会成功的欢乐，享受创造的喜悦；
The replacement fills installs the specification not to need to increase the spare parts, only must make the adjustment then to complete.
更换灌装机规格无需增添备件，只需作调整即可完成。
The replacement fills installs the specification not to need to increase the spare parts, only must make the adjustment then to complete.
更换灌装机规格无需增添备件，只需作调整即可完成。
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