The basic theory, main characteristic and technic al state of all kinds of electric rocket engine were discussed.
论述了各种电火箭发动机的工作原理、主要特点和研究现状。
The State of Law coalition of Prime Minister Nouri al-Maliki took an early lead.
VOA: special.2010.03.13
Al-Shabab is tied to al-Qaida and aims to make Somalia into an Islamic state.
VOA: special.2010.07.17
The U.S.State Department has a travel advisory for Timbuktu because of past terrorist activities in the region by the group al-Qaida in the Islamic Maghreb.
VOA: standard.2010.02.25
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