gantryn.(起重的)龙门架；跨轨信号架；(火箭发射设备的)竖架gantry slinger行车式抛砂机gantry running在悬架上运转gantry mounting门架gantry aperture扫描架孔gantry elevator龙门架升降机gantry traveler移动式龙门起重机gantry platform脚手台Gantry Test Rack发射架试验导轨gantry traveller移动式龙门起重机,门式移动吊车gantry clearance门架净空