firn.枞树；冷杉；枞木Firpi菲尔皮Firas菲拉斯Firan菲兰FIRNN有限脉冲响应神经网络Firuz菲鲁兹Firca菲尔卡Firaqn.菲拉格(在阿曼；东经 57º41' 北纬 23º12')Firpo菲尔波Fircze菲尔切fir.abbr.=fuel indicator reading 燃料提示器读数

1. Snow has lasted for several days in many districts and the firn is considered as the most serious one during the last 50 years.
   在许多地区，大雪已连续下了很多天，积雪被称为五十年来最严重的一次。