on period 闭合周期 ; [电] 工作期间 ; 开周期
relative difference on period [仪] 周期相对误差
on stream period 连续工妆期
open-kettle-on-period process 敞煮速测法
enter on a new period 进入一个新时期
interest on grace period 宽限期利息
on the period 关于周期
On balance period 上期余额
People look back nostalgically on the war period, simply because everyone pulled together.
人们怀旧地回忆战争时期,就因为当时大家齐心协力。
And I haven't offered it in quite a while now, so I doubt you ever studied that period on the college level.
我已经很久没教过这门课了,所以我怀疑你在大学阶段可能没有学过关于那个时期的内容。
Other mechanisms would be more likely to have taken place more gradually, over an extended period, or at different times on different continents.
其他机制更可能是较为循序渐进的,在更长时间段或在不同的大陆上的不同时间发生。
The event's final declaration, negotiated over a nine-month period, is expected to focus on economic, environmental and energy concerns.
VOA: standard.2009.04.17
I was particularly interested in metaphysical poetry political philosophy -- I wrote my thesis on a radical political philosopher of the 17th century of the civil war period.
我尤其感兴趣的是玄学诗派,和政治哲学,我的毕业论文,就是有关一名激进的政治哲学家,他生活在内战的十八世纪。
In the same period,there is clear-cut,unmistakable, oriental influence on Greek pottery and other things that they make.
在同一时期,有明显的证据表明,希腊受到了东方的影响,这表现在他们制作的陶器和其他器物上
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