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directional circulation drilling
释义
directional circulation drilling
Encyclopedia
理学
钻进方法
释
directional circulation drilling
正循环钻进
冲洗介质经钻杆内腔流向孔底,将钻头切削破碎下来的钻渣岩屑,经钻杆与孔壁的环状空间携带至地面的钻探循环方式。
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accommodation and catering industry turnover
accommodation coefficients
accommodation module
accommodation space
accommodative transfer
accompaniment
accompanying frame
Accompany to Dawn
accomplice
accomplishment of a crime
accomplishment verb
AC contactor
A.C.converter circuit
accordiaon-formed memorial to the throne
accordion
accordion-formed memorial of congratulations to the throne to pay respects
Accordion-formed Memorials to the Throne in the Guangxu Era from the Collection of the Forbidden City
Accordion-formed Memorials to the Throne in the Kangxi Era from the Collection of the Forbidden City
Accordion-formed Memorials to the Throne in the Qianlong Era from the Collection of the Forbidden City
accordion-formed memorial to the throne to express gratitude
accordion-formed memorial to the throne to pay respects
account
accountability
accountability audit system of natural resource
accountability culture of emergency management
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