显示经济指标变化与经济活动总周期变化同步变化的指数。
An index of economic indicators whose movements closely coincide with the overall cycle of economic activity.
和同相位，在任何时刻，任何地点电磁波的和都是同步变化的。
The changes of and of the electromagnetic is synchronous at any time and at any locality.
通过扫描发现杏仁体和听觉皮层的活动与受试者的评价同步变化。
Activity in both the auditory cortex and the amygdala varied directly with the subject's ratings.
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