正在加载原始文稿…
电推进、20 纳米的锥体，以及 Natalya Bailey 为什么不想排进火星的前一千人
原标题Electric engines, 20-nanometer cones, and why Natalya Bailey would skip the first thousand on Mars
原标题Electric engines, 20-nanometer cones, and why Natalya Bailey would skip the first thousand on Mars