搜索 - 科创

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原作者：博派专利论坛的cys网友。经过了编辑和整理。 abnormal engine noise diagnosis equipment 异响诊断仪abnormal handling 异常处理abno...

网上搜的业余无线电台操作常识 (一）. 业余电台通信程序普通呼叫程序: (见例一) CQ 3遍 This is(DE)1遍 This is(DE) 1遍本台呼号 3遍 Standing BY(K)...

剛剛接觸火箭，做了一些研究後自己設計了台發動機。可能會有很多不合理的部分希望可以指出。😅燃料選用的是KNSB （KN 66% SB 34%）。nozzle採用#45鋼 ...

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