NEW DELHI - India on April 20 carried out the accelerated launch of its Risat-2, a military surveillance satellite built with help from Israel and carrying an Israeli synthetic-aperture radar.

印度于4月20日发射其Risat–2，该军事侦察卫星是在以色列帮助下建造的，携带一部以色列合成孔径雷达。

youdao

"Our only real-time feedback will be aerial surveillance and satellite imagery," Allen said.

“我们唯一的实时反馈会是航空监测和卫星云图，”艾伦说道。

youdao

Considered a "pseudo satellite," Vulture may one day serve as a persistent intelligence, surveillance and reconnaissance (ISR) platform, or as an aerial node in a global communications network.

考虑到它是一颗“伪卫星”，Vulture可以作为一个情报、监视和侦查(isr)平台，或者作为一个全球通信网络的一个结点来服务。

youdao

The United States Space Surveillance Network is closely studying the collision involving the Russian satellite.

VOA: special.2009.04.01

Israel has launched a surveillance satellite that will be used to spy on Iran's nuclear programme, reports say.

BBC: Israel launches Ofek 9 spy satellite

C130J transport plane was hitting problem after problem, it lost a key satellite surveillance contract to Boeing, and losses kept piling up.

ECONOMIST: America's defence companies are turning dual-purpose

"But a great deal of it concerns our most sensitive systems, including aircraft avionics, surveillance technologies, satellite communications systems, and network security protocols, " he said.

BBC: Deputy Defense Secretary William Lynn