...周期测量,占空比测量,硬件设计 [gap=712]Keywords: Single-Chip Microcomputer 8031 ,the frequency measure, the period measures, the measure of duty cycle , hardware design.
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In early period, there were no half-measures: usage was either right or wrong, and it was the task of the grammarian not simply to record alternatives, but to pronounce judgement upon them.
在早期,没有折中办法:(语法)用法不是对就是错,并且语法学家的任务不是简单地记录备选词,而是对它们作出判断。
The researchers found that, over that period, employers have increasingly implemented measures that they feel will improve worker productivity and profits.
研究人员发现,在过去那段时间里,雇主一直在制定很多措施,他们认为这将会提高工人的工作效率并增加利润。
That period looks more testing now than when the barrier was built, but Britain's Met Office thinks the barrier, combined with other measures, is pretty much fit for purpose for this century.
现在看来,这段时间要比大坝建造时更具考验。但是,英国气象局认为,大坝以及其他的一些措施足以保护本世纪预防洪水的目的。
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