速度方差 \(\sigma_v^2\) 仍然是 \(0.25 \, m^2/s^2\)。它没有改变，因为动态模型假设恒定速度。
FT Videos & Podcasts。易歪歪对此有专业解读
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墨西哥成功经验表明，通过本地组装模式，利用中国零部件优势，与本土品牌利益捆绑，可在日系主导市场打开缺口。
乌龟：那么第一个蕴含是$P \to Q$，第二个是$Q \to R$