نمایش نتیجه 1 تا 2 از 2 نتیجه یافت شده برای snub line:
n: a strong wire rope attached to the end of the tongs and to one leg of the derrick to keep the tongs from turning too far when they are being used to make up, break out, or back up drill pipe or drill collars.
n: the part of the tongs that extends behind the tong jaws, and to which the jaws are attached. A snub line is attached to the end of the tong arm to prevent the tong from turning too far when it is being used to make up, break out, or back up pipe.
© ۱۳۹۲-۱۳۹۷ این اثر شامل قانون حمایت از مولفین بوده و هرگونه کپی برداری از آن ممنوع است.
