program circulating period 程序运行周期
period of circulating decimal 小数的循环节
And also given some suggestion on swimming pool design about circulating period, setting time of water supply and discharge, disinfection of water in pool, design of inlet outlet and overflow slot.
同时对游泳池设计中循环周期、充放水时间的设定、池水的消毒、进出水口、溢水沟的设计等提出建议。
The vaccine is derived from the most commonly circulating strain of rotavirus, and also offered good protection against some other strains across the two-year period.
这种疫苗是根据最常见的轮状病毒毒株制成的，而且在两年的时间里也能很好地保护人体不受其它一些毒株的感染。
They use statistical models designed to calculate so-called excess mortality that occurs during the period when influenza viruses are circulating widely in a given population.
所使用的统计模型旨在计算流感病毒在特定人群中广泛传播期间发生的所谓超额死亡率。
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