Other equipment incorporated to film the Quidditch sequences included: a pole arm, on which the broom could be mounted and either manually or mechanically manipulated;
其他辅助拍摄魁地奇的设备还有：一个长杆式的机器手臂，它可以将扫帚固定在上面，可以进行手工或者机器操纵；
The amount of time you are "exposed" in the market through active trading, either manually or mechanically, is inversely proportional to your profitability success rate.
所需的时间你是“暴露”在市场上通过交易活跃，无论是手动或机械，是成反比的盈利成功率。
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