Using a directional antenna, the device shoots data to a receiving antenna as far as 60 miles away.

利用定向天线，这种设备发射数据到远在60英里外的接收天线。

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The faint arrows, similar to the directional markings on a tactical map, are one of the rare carry-overs from his military world.

微小的箭头类似于战术地图上的方向标记，是他的军事世界中罕见的遗留物之一。

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The directional derivative in a direction that's perpendicular to the gradient is basically zero.

垂直于梯度的方向上,方向导数为零。

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The trader significantly decreased the cost of taking a directional stance on the stock by employing a call spread instead of buying the closer-to-the-money calls outright.

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But something like 70% of shoppers go shopping with a directional list, not detailed enough to do a lot of direct price comparison.

FORBES: How Retailers Can Benefit From Consumer 'Showrooming'

TD-LTE is the 4G standard developed for use across China, and it is now being adopted by operators across the globe. lightRadio Metro Radio houses two lightRadio cubes, fully integrated with a directional antennae, allowing it to provide the coverage normally associated with a much bulkier, heavier remote radio unit linked to an external antenna via an RF coaxial cable.

ENGADGET: Alcatel-Lucent's latest lightRadio development aims to spread TD-LTE across China