نمایش نتیجه 13621 تا 13630 از 14709 نتیجه یافت شده برای P:
n: The hard face on the surface of joint of drill string ,which can stand the wear and tear,then developing its service life .
on-site rig manager. Often there is a rig manager that looks after the rig (office position usually) and between 2 and 4 tool pushers)
n: (slang) tool dresser.
n: The worker that in charge of repairing or milling bit.He is the assistant of driller.
n: an employee of a drilling contractor who is in charge of the entire drilling crew and the drilling rig. Also called a drilling foreman, rig manager, rig superintendent, or rig supervisor.
سر حفار
n: The tool that be used at the condition of under pressure,for example ,preventer.
n: The private tool that be used in the whole process of drilling.
n: The relational coefficient between the tooths arrangement of bit and rock property and drilling parameter.
سرستون لوله
n: the angle on a storage tank where the side wall is joined to the roof of the tank;it is usually 90�.
مجرابند سیمان کاری فوقانی
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