我们在东北地区寒冷季节里野外训练,采用了玉米叶子保暖鞋垫,防冻保暖效果很好,在250人中无一名发生冻脚。我们利用玉米成熟季节,大量采集叶子,因这时叶子质量较好,收集后晒干备用。做鞋垫办法有二:一、把晒干的叶子想法压平,一张一张叠起来,一般要七八层,用针线像做袜底似的缝起来,然后 We trained in the wild in the Northeast during the cold season, using corn leaf warm insoles, and the effect of antifreeze warmth is very good. None of the 250 people have frozen feet. We use the corn ripening season, a large number of leaves, because when the leaves are better quality, dried and collected after use. There are two ways to do insoles: First, the idea of ​​flattening the sun dried leaves, one by one stack up, usually seven or eight layers, with needle-like sock-like seam, and then