flying saucer：外星船

helium balloon熱氣球 | flying saucer外星船 | hurtling扔出去,拋出

flying saucer：熱氣球

電視現(xiàn)場直播 helium balloon | 熱氣球 flying saucer | 外星船 hurtling

And phosphorous and francium and fluorine and terbium：磷,氟,鈁,鋱

There's holmium and helium and hafnium and erbium 這里有鈥,氦,鉿,鉺 | And phosphorous and francium and fluorine and terbium 磷,氟,鈁,鋱 | And manganese and mercury, molybdenum, magnesium, 錳,汞,鉬,鎂

Hall probe magnetometer：霍爾探頭磁強計

霍爾探頭 Hall probe | 霍爾探頭磁強計 Hall probe magnetometer | 氦檢漏儀 helium leak detector

helicon etching system：螺旋波蝕刻系統(tǒng)

helical etching system 螺旋型蝕刻系統(tǒng) | helicon etching system 螺旋波蝕刻系統(tǒng) | Helium leak detector 氦測漏器

heliograph：日照計;日光計

helical bellows,螺旋波紋管 | heliograph,日照計;日光計 | helium mass spectrometer leak detector,氦質(zhì)譜檢漏儀

heliport deck：直升飛機平臺甲板

heliotrope 太陽鏡 | heliport deck 直升飛機平臺甲板 | helium gas compressor 氦壓縮機

hellandite：鈣鉺釔礦

helium 氦 | hellandite 鈣鉺釔礦 | helophytes 沼生植物

hellebore：藜蘆

helium | 氦 | Hellebore | 藜蘆 | hemangioma | 血管瘤

helm indicator：舵角指示器

499 氦 helium | 500 舵角指示器 helm indicator | 502 高升程閥 high lift valve