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动力头钻机
释义
动力头钻机
Encyclopedia
理学
钻机
释
power head rig
动力头钻机
以动力头为回转机构,采用桅杆结构和可实现长行程给进的钻机。
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The Overcoat
the Overview of Chinese Garden
The Owen Falls Reservoir
The Owl in the Room
The Owl Who Married the Goose
The Owner of Wuwang Village
The owners' committee
the ownership of the house
The Oxford Guide to Practical Lexicography
The Oxford Handbook of Screendance Studies
The Oxford History of South Africa
the oxygen group elements
the Pacification Commissions
The Pacific Islands: An Encyclopedia
The Pacific Rim Research Libraries Alliance
The Pageant of Peking
The Painted
The Painted Skin
the painting atlas of Beijing Custom
The Painting of Cicada in Litchi
the paintings for export from Guangdong
the painting style of the Caos
the painting style of the Zhangs
The Palace Jewelry Service
The Palace Museum Library
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