Slow efficiency at threshold is observed to be nearly constant over the wide range.

在广域范围内观测到的低效阈值近似为常数。

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Rate of picking up the keys that were pressed was slow, though the researchers seemed confident of improving it - and the range - with better equipment.

收集的按键的频率还很慢（译者：太快了也许就无法识别了），不过研究人员似乎有信心利用更好的设备进行对它及工作范围进行改进。

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The camera has an LED flash, which helps at close range at night, but the camera itself is balky and slow to focus and fire.

照相机有一个 LED 闪光灯，在夜晚照近距离相片时很有用，但是，照相机本身迟缓，对焦和拍照都比较慢。

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Internet-only banks have also been slow to offer a full product range.

ECONOMIST: The hollow promise of Internet banking

Anne-Laure Tremblay, precious metals strategist at BNP Paribas, said gold continues to gain net long positions, but the momentum is beginning to slow as gold is in a price range.

FORBES: FOCUS: Speculators Continue To Gather Bullish Precious, Base Metals Positions --CFTC

Excellent for slow cooking, and it carries over a range of 100 feet (few barbecues are more than 100 feet from an ESPN broadcast).

FORBES: Magazine Article