搜索 - 科创

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突发奇想画了一个（参考巨擘的火箭）先上图零部件基本光固化，部分快干水泥（堵头）全长:146mm装药量 :130g总重:550g推力:152N(仿真软件计算）单杖造价:不超50RMB燃料类型:KN类通...

一、实验原理2Br–＋S2O8 2－ →2SO4 2－+Br2↑二、实验药品①过硫酸钾:135g（略过量）②溴化钠:100g ③少量稀硫酸（可不用）④浓氨水⑤少量浓硫酸三、实验器材①500ml全玻蒸馏...

新疆“90后”研制首台非金属发动机打出马赫环（图）人民网乌鲁木齐10月9日电（韩婷）发动机启动，慢慢喷射出微微泛红的黄色火焰，异常美丽的马赫环伴着火光出现，这就是科技带来的魅力。

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