traverse grinding

例句：

1. 2. 磨光；磨削3.
   在地质学中
2. 1.The engineer planned to traverse the mountain by cable car.
   工程师计划通过缆车穿越这座山。
3. 2.The team decided to cross the river by boat.
   团队决定乘船过河。
4. 3.The rock was cut through with a diamond tool.
   用钻石工具切穿了这块岩石。