Fraiz弗赖斯FRAn.兄弟(对意大利和尚或托钵僧的称呼)abbr.(美国)联邦铁路局(=Federal Railroad Administration)abbr.(美国)联邦储备法(=Federal Reserve Act)Fragum unedo Linnaeusn.草莓鸟尾蛤(鸟尾蛤超科；鸟尾蛤科)fracturing base fluid压裂基液Fragilaria gracilliman.纤细脆杆藻Fraxinus mandschurican.水曲柳fram machinery safety平安农机Fragilaria aurivilliin.澳氏脆杆藻Fracturing with sands加砂压裂fraetal gas reservoir分形气藏Fragaria nilgerrensisn.黄毛草莓frangibility analysis脆弱性分析