权威例句
DuckboardDuckboardDUCKBOARDDUCKBOARD FATIGUE RELIEF MATAdjustment drive for use with duckboard, has brake mechanism with non-twistable spring connected at its ends with brake unit and dri...Duckboard: Fighting SpiritComparison of zootechny performances and contents of effluent in azote as well as Large White Swines breeding on the duckboards or p...Upgrade your walkways with duckboard, flue tile, and railroad ties[Australian troops at Chateau Wood near Retaliation Farm walking over duckboards in the waterlogged fields to Zonnebeke, Flanders, O...[Soldiers carrying duckboards, soldiers on horseback, near Zonnebeke, Flanders, October 1917] [Flanders, World War I] / [Frank Hurley]Flexible metal duckboard flooringLame-duck board in Texas okays discrimination banO'Grady, James, 1882?-1956 :Hun trench, periscopic observation post, Gommecourt line; British duck-board bridge, Gommecourt [1918]
