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汉语拼音：táng xiàn

枪膛或炮膛内的螺旋形凹凸线，凸起的叫阳线，凹下的叫阴线。作用是使发射出的弹头旋转飞行，以增加射程、命中率和贯穿力。也叫来复线。

• It was rare, she said, rifling through a patient's tattered record.

  这是少有的，她说，通过病人的破烂的纪录膛线。

• In French the word rifler meant to "scratch" and that's why the grooves inside a gun barrel are called rifling.

  法语单词rifler就曾经有“刮”（scratch）的意思，这也就解释了为什么枪膛内的膛线被称为rifling。

• Groove on the inside of the barrel, rifling, spin the ball towards its target.

  枪管内壁的凹槽即装膛线，让子弹旋转着射向目标。

• The heavy barrel is precisely made by the cold hammer forging process with polygonal rifling for improved accuracy and longer life.

  在重型枪管正是由冷锻造良好的精度和寿命更长的过程多边形膛线锤。

• Rifled firearms date at least to the 15th century.

  有膛线的武器最早可以追溯到15世纪。

• Correction for drift caused by the adoption of rifling in big guns was approximated by inclination of the rear sight bracket.

  并且靠稍微偏移后瞄准座来修正大型火炮因膛线所带来的偏流。

• It is very important for the parameters of rifling to be recognized and extracted.

  膛线诸参数的识别和提取是一个重要的部分。

• The way to make a bullet spin is to scratch long spiral grooves on the inside of the gun barrel.

  要想让子弹在激发后旋转起来，人们就得在枪膛的内侧凿出长长的螺旋膛线。

• Lyrics: On a highway along the Atlantic I'm rifling through these last 17 years.

  歌词：在沿大西洋高速公路我膛线通过这些过去的17年。