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科学时代收录了3405121条科普词条,基本涵盖了常见科普常识及英语词汇的翻译,是科学学习和研究的有利工具。

free electron laser free-electron laser free electron laser{=FEL} free-electron lasers free-electron model
free electron sea free element FREE END free end free end attachment
free end connector free end of the thread free endpapers free end point variational problem free end region
free energy free energy at constant pressure free energy change free energy-composition diagram free enthalpy
free-enthalpy free entry Free entry and exit free enzyme free Euclidian distance
free exhaust free exit ticket free expansion free-expansion free-expansion implosion
free extrusion free f1oal Free F1oat free f1oat free face
free fall free-fall free fall acceleration free-fall bomb free fall bomb
free-fall control system (FFCS) free fall control system{=FFCS} free fall distance free-fall drill free fall grab
free fall grab sampler{=FG} free-fall gravimeter free-fall gravity free-fall impact test free falling body
free falling velocity free fall landing gear free-fall landing gear free fall launching free-fall launching
free fall lifeboat free fall model free-fall model free fall of line standard free-fall parachute
free fall test free fantasia Free fatty acid free fatty acid free ferrite
free ferry free-fibre-end yarn free field free-field free-field calibration
free field condition free-field correction free field correction curve free-field measurement free-field method
free field overpressure free field reciprocity calibration free-field response free-field sensitivity free-field sound pressure
free field spherical wave reciprocity calibration free field storage free-field voltage sensitivity free field voltage sensitivity free file map
free fire zone free fit free flexural wave free flight free-flight angle
free-flight rocket free-flight trajectory free flight trajectory free flight tunnel free float
free float (FF) free-floating free-floating anxiety free floating body free-floating discussion
free floating hydrophyte community free-floating intellectual free floating moored buoy free-floating piston free-floating planet
free-floating subdivision free-floating type free-floating-type structure free floating water plant free floation type
free float PERT free flooding superstructure free-flooding tank free flow free-flow bender
free flow head free flow(hydraulic) free flowing free-flowing conversation free-flowing milk powder
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