gantry

n tall metal frame supporting a crane, signals on a railway or motorway, rocket-launching equipment, etc 金属台架; （起重的）龙门架; （铁路或高速公路的）信号机架; （火箭发射设备的）竖架.

gamma radiation, gamma ray, gammon, gammy, gamut, gamy, gander, gang, gang together, ganger, gangland, gangling, ganglion, gangplank, gangrene, gangrenous, gangster, gangway, ganja, gannet, gaol, gaol (US usu 美式英语通常作 jail), gaoler, gap, gap-toothed, gape, garage, garage sale, garb, garbage, garbage can, garble, garbled, garden, garden centre, garden city, garden suburb, garden party, gardener, gardenia, gardening,