搜索 - 科创

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不过，显而易见的是，高空探空用的细火箭不能提高火箭的发动机质量占比，因为固机很难把长径比做很大，不如换成液机，燃料氧化剂储箱想怎么做怎么做，做成小玩具的形状都没问题，压燃料就用齿轮泵或者电泵。

应该是这十几年业余激光领域罕见的大新闻了100uJ氮分子激光,详见此人先前维修贴.泵浦一个土造染料激光,产生2-3纳秒的快速蓝色脉冲送进一卷普通单模通信光纤,脉冲经过非线性过程,自相位调制,产生超连续展宽

告诉燈爺我抽真空的方法, 家里有一个真空收纳袋附送的手动抽气泵,我找了一个玻璃瓶打个孔,抽了一下燃料里的空气. 如果想要好一点的,可淘一个电动吸气泵,20几元.瓶盖上装个气门芯.

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