FRN=Fatigue Resistant Nylon Cord 耐疲劳尼龙帘线
FRabbr.故障率(=failure rate)abbr.故障记录(=faillure record)abbr.故障报告(=failure report)
Frelimo Party自由解放党
Fremy rs salt二氟氢钾, 弗里米盐
Frenquellucci弗伦奎卢奇
Frelinghuysenn.弗里林海森
Frenkel mixer弗兰克尔螺旋搅拌机
Fregata arieln.白斑军舰鸟
frnsulfothion[机] 丰索磷