نمایش نتیجه 1 تا 2 از 2 نتیجه یافت شده برای threaded coupling:
a threaded coupling under the kelly to which the joints of drill sting are make up. Save wear on the kelly threads.
n: a type of connector that has threads on each end, making it possible to screw two pieces of pipe together. Compare pressure coupling. See also coupling.
© ۱۳۹۲-۱۳۹۷ این اثر شامل قانون حمایت از مولفین بوده و هرگونه کپی برداری از آن ممنوع است.
