He had persuaded his science teacher to help him make a makeshift rocket. Somehow, he had managed to get his hands on the ingredients for gunpowder - potassium nitrate, sulphur and charcoal.
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（二）向境外单位转让的完全在境外使用的技术；
В России ответили на имитирующие высадку на Украине учения НАТО18:04