装膛线

例句：

1. 1. The gun has a unique design that includes a distinctive ribbed pattern on the barrel.
   这把枪有一个独特的设计，包括一个在枪管上的独特纹理图案。
2. 2. The bullets are designed to follow this intricate ribbed pattern, ensuring precision intheir flight.
   子弹被设计成遵循这种复杂的螺纹模式，确保它们飞行的准确性。
3. 3.The armored vehicle's body is covered with a series of ribbed patterns for added protection.
   装甲车的身体覆盖着一系列螺纹图案，以增加保护。