lug boss

• 凸起部,凸台

lug boss的用法和样例：

例句

1. The thick part of the piston that holds the piston pin is the pin boss.
   用来支撑活塞销的活塞厚的部分称为活塞销凸台。
2. This paper deals with warm precision forging of accurate spur gears with big modulus and high boss.
   本文所研究的是大模数高凸台圆柱直齿轮的温精密成形技术。