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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。

helicopter; composite helicopter control ship {= HCS} helicopter deck helicopter direction center helicopter direction center {= HDC}
helicopter director helicopter drop point helicopter duster helicopter electromagnetics helicopter emitter/locator countermeasure (hemloc)
helicopter emitter/locator countermeasure{=hemloc} helicopter employment and assault landing table helicopter energy/rotor management system (HERMES) helicopter energy/rotor management system{=HERMES} helicopter enplaning schedule
helicopter external air transport certification categories helicopter; fire support helicopter flight helicopter flight rendezvous helicopter gravity
helicopter gunship helicopter hangar helicopter; heavy-lift helicopter{=HEL} helicopter (HEL)
helicopter; hingeless rotor helicopter initial point helicopter; intermeshing-rotor helicopter landing diagram helicopter landing site
helicopter landing zone helicopter lane helicopter-launched missile helicopter load helicopter long range active sonar
helicopter main rotor blade subassembly helicopter operation helicopter pad helicopter parent helicopter performance computer{=HPC}
helicopter rescue strop helicopter; rigid-rotor helicopter route chart helicopter ship landing platform{=LPH} helicopter signature
helicopter sower helicopter; stub-wing helicopter support helicopter support team helicopter support unit
helicopter team (heliteam) helicopter team {= heliteam} helicopter; tip-driven helicopter tower helicopter transport areas
helicopter transport support helicopter voice code helicopter wave helicopter wave rendezvous helicopter windline screen
helicopter; winged helicopter) Helicosphaera carteri Helicosphaera hyalina Helicosphaera pavimentum
Helicosphaera wallichii Helicospheaera helicospore Helicosporeae Helicosporium
Helicosporium lumbricoides Helicosporium nematosporum Helicosporium nymphaearum Rand. Helicosporium pannosum Helicosporium phragmitis
Helicosporium serpentinum Helicosporium simplex Syd. Helicosporium vegetum Helicostyla okadai Helicotheca tamesis
Helicotrema helicotrema Helicoverpa armigera Helicoverpa armigera (Hübner) Helicoverpa assulta
Helicoverpa assulta (Guenée) helics Helicteres Helicteres angustifolia L. Helicteres augustifolia
Helicteres hirsuta Lour. Helicteres isora L. Helicteres lanceolata DC. Helictis subaurantiaca helictite
helictitic structure Helictotrichon abietetorum helidone dye helidrop heliencephalitis
heligmite Heligmite Heligmodendrium hassalli Heligmosomoides murina Heligmosomoides polygyrus
Helike helimagnetism Helina appendiculata Helina duplicata Helina lateralis
Helina nemorum Helina nervosa Helina punctata helio- heliocenter
heliocentric heliocentric angle heliocentric constantn heliocentric coordinates heliocentric coordinate system
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