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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-run free running free-running free running blocking oscillator free running fit
free-running frequency free-running high frequency interference free-running laser free running mode free-running model
free-running model test free running model test free running multivibrator free-running multivibrator free running of steering wheel
freerunning(or selfrunning) multivibrator free-running period free-running propeller free-running property free-running rhythm
free running (self running) multivibrator free running speed free-running speed free running sweep free-running time base
free run (wine) free run, free run wine free sale certificate free sand free-sapce attenuation
free schema free schema entry free school free selection free semigroup
Free-setting the crown free settling free shear free shear zone free ship
free shrinkage Free Shuttle Bus free shuttle bus Freesia armstrongii W. Wats. Freesia;freesia
freesia;Freesia refracta Klatt free-silica free site concentration free sketch free-slack
free slack free-slip boundary condition Free-slip condition free slot free software
Free Software Foundation Free Software Foundation {=FSF} free solder ball free sound field free [sound] field
free source free space free-space free-space administration free space administration
free space attenuation free-space diagram free space digital optic free space directory free-space field
free space field free space gain free space grating free space interconnect free space list
free-space loss free space loss free space loss ground plane free space management free space maximum range equation
free space optica free-space optical free space optical communication free space optical communication{=FSO} free space optical interconnect
free space optical interconnection free-space optical-over-fiber free space optics free-space optics free space page
free-space path loss free-space permeability free-space permittivity free-space photonics free-space propagation
free space radiation mode{=FSRM} free space radiation mode method free space transmission free space wavelength free-space wavelength
free space wideband transmission free span free spectral range free speech online free speech right
free speed free spinning tunnel free-spiro union free spread freestanding
free-standing automated warehouse free-standing blade free-standing component system furniture free standing display free-standing fuel tank
free-standing grain free standing insert {=FSI} free-standing inserts {=FSIs} freestanding object free standing operating system{=FSOS}
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