[{"title":"(2个子文件15.47MB)惯性导航(秦永元)、捷联惯导算法与组合导航原理讲义(严恭敏)","children":[{"title":"捷联惯导算法与组合导航原理讲义(20171013).pdf <span style='color:#111;'>9.29MB</span>","children":null,"spread":false},{"title":"惯性导航.pdf <span style='color:#111;'>9.42MB</span>","children":null,"spread":false}],"spread":true}]