entrance ramp marking

例句：

1. 1.The entrance ramp markings on the highway were clearly visible from a distance.
   高速公路上的入口坡道标记在远处就清晰可见。
2. 2.The construction crew carefully marked the entrance ramp to ensure smooth traffic flow.
   施工队伍小心翼翼地标出了入口坡道，以确保交通流畅。
3. 3.The new design of the ramp markings has made it easier for drivers to navigate through the busy intersection.
   新设计的坡道标记使司机更容易在繁忙的交叉口导航。