据英国媒体报道，俄罗斯在西部飞地加里宁格勒建造了一座大型雷达设施，可探测最远3200公里（2000英里）外的飞机、导弹和海军舰艇。
Russia has built a large radar installation in the western exclave of Kaliningrad that could detect aircraft, missiles and naval vessels up to 3,200 kilometers (2,000 miles) away, according to British media reports.
《泰晤士报》周一援引卫星图像报道，该系统可能扩大莫斯科在北欧和西欧（包括英国）的监视能力。
The system could expand Moscow’s surveillance capabilities in northern and western Europe, including the UK, The Times newspaper reported Monday, citing satellite imagery.
该设施位于加里宁格勒州的格瓦尔代斯克镇附近，加里宁格勒是俄罗斯高度军事化的领土，与北约成员国波兰和立陶宛接壤。
Located near the town of Gvardeysk, the installation is in Kaliningrad, a heavily militarized Russian territory bordering NATO members Poland and Lithuania.
据报道，该设施有三条长达500米（1640英尺）的天线桅杆辐射臂。
The facility features three radiating arms of antenna masts, each 500 meters (1,640 feet) long, according to the report.
这种配置表明，该设施可能是一种超视距（OTH）雷达——旨在探测常规雷达系统视线之外目标的技术。
The configuration suggests the installation could be an over-the-horizon (OTH) radar -- technology designed to detect targets beyond the line of sight of conventional radar systems.
超视距雷达利用可被电离层反射的高频无线电波，从而能够探测比常规系统远得多的潜在目标。
OTH radars use high-frequency radio waves that can reflect off the ionosphere, allowing them to detect potential targets over much greater distances than conventional systems.
该雷达的报道探测范围估计在885至3200公里（550至2000英里）之间，可能使俄罗斯能够监测欧洲大部分地区的军事活动。
The radar’s reported range is estimated at between 885 to 3,200 kilometers (550 to 2,000 miles), potentially enabling Russia to monitor military activity across large parts of Europe.
加里宁格勒位于波兰和立陶宛（均为北约成员国）之间的波罗的海沿岸，对莫斯科具有战略重要性。
Kaliningrad is strategically important to Moscow because of its position on the Baltic Sea, between Poland and Lithuania, both NATO members.