by-pass pipe

例句：

1. 1. The by-pass pipe was designed to divert traffic around the congested area.
   旁通管的设计是为了将交通引导到拥堵区域。
2. 2.The construction crew had to by-pass a section of the road to complete the project on time.
   施工队不得不绕过一段路来完成项目，以免延误工期。
3. 3. The by-pass pipe is essential for maintaining the smooth flow of traffic in heavy traffic areas.
   旁通管对于在交通繁忙地区保持交通流畅至关重要。