نمایش نتیجه 1 تا 2 از 2 نتیجه یافت شده برای drilling block:
n: a lease or a number of leases of adjoining tracts of land that constitute a unit of acreage sufficient to justify the expense of drilling a wildcat.
n: the lease used for oil finding in early drilling
n: the diameter of the sheave of a drilling block, measured from groove bottom to groove bottom. It is the diameter of the circle around which the wire rope is bent.
n: The diameter of pulley groove that be encircled by wire rope.
© ۱۳۹۲-۱۳۹۷ این اثر شامل قانون حمایت از مولفین بوده و هرگونه کپی برداری از آن ممنوع است.
