نمایش نتیجه 1 تا 2 از 2 نتیجه یافت شده برای bored crossing:
n: a hole under a road, railroad, stream, or other obstacle under which a pipeline must cross. It is created by using an auger or other type of drill.
n: a road crossing in which the pipeline ditch cuts through the road instead of being bored under it An open-cut crossing is generally used in sparsely populated areas where the right- ofway crosses little-used dirt or gravel roads. Open-cut crossings are more convenient than bored crossings and also hold down costs.
© ۱۳۹۲-۱۳۹۷ این اثر شامل قانون حمایت از مولفین بوده و هرگونه کپی برداری از آن ممنوع است.
