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工作学习 / 科技杂谈 / How SpaceX Lands Rockets with Astonishing Accuracy - YouTube
-sailor(Ocean & Mountain);
2020-6-4
{126}
(#13007341@0)
+2
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了不起。工程師了不起，舍得花錢給他們造的投資商更了不起。😄
-letempsdescerises(惜春常怕花开早);
2020-6-4
(#13007371@0)
+1
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News said it would have costed NASA $20B if NASA did it self but had costed $2.4B when EM did it.
-troyd(Covid32);
2020-6-4
(#13007382@0)
+1
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可見哪裡都有人浮於事的現象，高科技人員密集的NASA也不例外。
-letempsdescerises(惜春常怕花开早);
2020-6-4
(#13007397@0)
+1