کلمه pennanent guide base یافت شد:
n: a structure attached to and installed with the foundation pile when a well is drilled from an offshore floating drilling rig. It is seated in the temporary guide base and serves as a well head housing. Guidelines are attached to it so that equipment (such as the blowout preventers) may be guided into place on the wellhead.
برای نمایش کلمات مرتبط نیز اینجا کلیک کنید!© ۱۳۹۲-۱۳۹۷ این اثر شامل قانون حمایت از مولفین بوده و هرگونه کپی برداری از آن ممنوع است.
