Fourtou富尔图fournum.四four thousand seven hundred and ten(=4710) 四千七百一十four thousand six hundred and forty(=4640) 四千六百四十four abilities in lexical knowledge词汇知识四种能力Fourier transform mass spectrometer傅里叶变换质谱计four thousand three hundred and ten(=4310) 四千三百一十four thousand five hundred and four(=4504) 四千五百零四four - character sentence pattern四言句式four-mode differential laser gyro四频差动激光陀螺four thousand eight hundred and one(=4801) 四千八百零一four thousand nine hundred and five(=4905) 四千九百零五