您要查找的是不是：
- 管pipe
- 枪管；炮管a gun barrel
- 双枪管double-gun tube
- 多枪管multigun tube
- 手枪枪管the snout of a pistol
- 薄片卷成的枪管laminated barrel
- 四枪管four-gun tube
- 枪管钻gun drill
- 三枪管three gun tube
- 两根枪管Lock, Stock and Two Smoking Barrels
- 枪管征gun sign[胆管扩张的超声图象]
- 枪管衬管barrel liner
- 枪管腐蚀barrel erosion
- 枪管节套barrel extension
- 枪管烧蚀barrel erosion
- 枪管寿命barrel life
- 枪管套筒barrel jacket
- 枪管凸耳barrel lug
- 枪管锈蚀barrel corrosion
- 镀铬枪管chromium lined barrel
