straight course

• 直线球路

straight course的用法和样例：

例句

1. Removable weights can be attached to either side of the aerator housing to help maintain a straight course when traversing a slop.
   当通过一斜坡时，附在打孔机机壳两侧的可移动的配重可以帮助保持机器走直线球路。