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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。

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Hydrelia bicolorata	Hydrellia incerta	Hydrellia luteopes	Hydrellia sasakii Yuasa et Ishitani	hydremia
hydremia， hydraemia	hydremic ascites	hydremic edema	hydremic nephritis	hydrencephalitis
hydrencephal ocele	hydrencephalocele	hydrencephal，hydrocephalus，hydrocrania	hydria	Hydriastele
hydric	hydride	hydride alkaline secondary battery	hydride battery	hydride catalyst
hydride cell	hydride cell (colloidal metal cell)	hydride complex	hydride descaling	hydride ion {= H-}
hydride ions	hydrides	hydride storage unit	hydride vapor phase epitaxy	hydride vapor phase epitaxy{=HVPE}
hydriding	hydrid steel	Hydrilla verticillata	Hydrilla verticillata Casp.var. roxburghii Casp.	Hydrillodes flavimacula
Hydrillodes gravatalis	Hydrillodes lentalis	Hydrillodes nilgirialis	Hydrillodes torsivena	Hydrillodes wilemani
hydrindane	hydrindene; indane	hydriodic acid	hydrion	hydrion;hydrogen ion
Hydriscapha takahashii	hydrite	HYDRO	Hydro	hydro-
hydroa	hydroabietyl alcohol	hydroacoustic cross bearing	hydroacoustic positioning reference system	hydroacoustics
hydroacoustic vibrator	hydroactive reaction	hydroaeroplane	hydro airplane	hydroairplane