spur guide

• 直导轨

spur guide的用法和样例：

例句

1. It employs an absorbing mechanism with multiple magnetic wheels and a brake deuce, which can make the robot run safely and autonomously along the vertical guide rail.
   采用多磁轮吸附机构和下滑制动机构，实现了机器人在竖直导轨上的安全自主运行。