A muzzle-loading cannon with a short barrel that fires shells at high elevations for a short range. (指枪炮)射程达到(某距离)一种短炮筒、高角度、近距离的前装大炮。
A muzzle-loading cannon with a short barrel that fires shells at high elevations for a short range. cylindrical box of paper or paperboard [ for cheese ] 一种短炮筒、高角度、近距离的前装大炮。圆筒纸盒或硬纸盒[用于包装乳酪]
This very short " gun barrel " will help reduce dispersion. 这种很短的炮筒有助于减小散布。
For example, if there is a short slab, the barrel would leak. 好比一个木桶,假若有一个短板,这个木桶就会漏水。