Youkun Shi, Fudan University
BBC at the site of Israeli air strikes in BeirutOn Wednesday, Lebanon was hit with the heaviest bombardment by Israel in this conflict.
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Фрагменты беспилотника нарушили целостность секции российского нефтепровода08:37
在材料、叶片制造、整机设计等关键环节上，东方电气持续攻关，一步步补齐短板。从实验验证到样机研制，再到系统集成测试，技术能力逐渐逼近国际先进水平。