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reverse circulation continuous coring
释义
reverse circulation continuous coring
Encyclopedia
理学
钻进工艺
释
reverse circulation continuous coring
反循环连续取心
采用双壁钻杆钻进,冲洗液(或空气)从双壁钻杆内外管环状间隙泵入,从钻杆内管内返出地面,同时连续不断地把岩心岩样携带至地表的取心方法。
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Presidential-Libraries
Presidential Records Act
president of the People's Republic of China
president-responsibility system under the leadership of Chinese Communist Party Committee
Presidents Cup
presidium of the National People's Congress
presious metal nanomaterials
pre-slotted liner
presoak
presoaking
presolar grains
presolar matter
presolar nebula
presolar object
pre-sowing irrigation
pre-sowing seed treatment machine
presowing treatment of seed
presowing treatment of tree seed
presplitting
presplitting blasting
presplitting blasting of open pit
Presqu'île crater
PRESS
press
press allowance
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