Freu弗勒
FRabbr.故障率(=failure rate)abbr.故障记录(=faillure record)abbr.故障报告(=failure report)
Freund reaction弗罗因德闭环反应
fructus jujubae大枣
frustum fitting锥台配合
fructophyranose吡喃果糖
freignt traffic货运
Fresnel ovaloid菲涅耳卵形体
FRP square tube玻璃钢方管
frenum buccalis颊系带
frustum of cone平截头圆锥体
freouencv sweep频率扫描