The first stage of the European Low FrequencyArray (Lofar) telescope involves 96 radio antennae being erected this week in a field at the Chilbolton Observatory near Andover, Hampshire.
Lofar望远镜的一期工程位于罕布什尔的安多佛，由96个无线电天线组成的望远镜将在本周被安装完毕。
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Crewed by civilians, Impeccable is equipped with an active low-frequency towed array with a series of modules, each housing two high-powered transducers.
“无瑕号”由平民操作，装备有主动探测的低频声纳，具备一系列的模块，每一模块配有两个大马力的传感器。
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With its narrow operating frequency scope and low measuring precision, traditional phase difference measuring system can 't satisfy the requirement of modern phase array technology.