conical bore造句

• The experimental model study on the dynamic characteristics of hybrid conical bearing
  气体径向轴承静态性能实验台的研制
• A slender woodwind instrument with a conical bore and a double reed mouthpiece , having a range of three octaves and a penetrating , poignant sound
  带有一个圆锥形孔和双簧管吹口的细小的木管乐器，具有三个八度音域和穿透力强而尖利的声音。