HF radio communication has a significant communication blind zone in the range of 200 kilometers usually. This disadvantage restricts its application in the near range tactical mobile communication.

短波无线电通信在200公里范围内通常存在着盲区，这一特点制约了其在近距机动通信中的应用。

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This is currently an acceptable solution, as computer memory sizes are nowhere near the full 64bit address range.

这是一个相当不错的处理方法，因为计算机存储的规模远不及64位的极限地址范围。

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On the Gulf Test Range near Eglin Air Force Base, Fla., an F-15 Eagle fired two missiles at two QF-100 drones at 10,000 feet and two more at two drones at 5,000 feet.

在佛罗里达州埃格林空军基地附近的湾试验靶场，一架F-15鹰式战斗机在10000英尺的高度、在QF-100drone上发射了两枚导弹，并在5000英尺高度发射了另外两枚。

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These systems use camera images or near-range radar to determine the direction and position of the vehicle in relation to lane markings.

ECONOMIST: Motoring

March silver futures prices closed near mid-range Thursday and also hit a fresh four-week high.

FORBES: Comex Gold Ends Firmer, But Off Daily High, Amid Bullish "Outside Markets"

Technically, February gold futures prices closed near mid-range Thursday and hit another fresh nearly three-month low.

FORBES: Comex Ends Lower on Follow-Through Pressure From Wednesday's Drubbing