In other words, when actual output falls, it can drag potential output down with it-the main reason why Mr Williams and Mr Weidner believe that the gap is smaller than the CBO's estimates.
换言之，当实际产出下降，潜在产出也可能随之下降，这也是为什么Williams和Weidner认为产出缺口小于CBO预测数据的主要原因。
Results indicate that when the double container car enters into a tunnel, the pressure drag of the double container car quickly rises, and then rapidly falls.
测试结果表明：双层集装箱车辆进入隧道口时，空气压差阻力急剧上升，之后又迅速回落；
Results indicate that when the double container car enters into a tunnel, the pressure drag of the double container car quickly rises, and then rapidly falls.
测试结果表明：双层集装箱车辆进入隧道口时，空气压差阻力急剧上升，之后又迅速回落；
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