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钻机起升系统
释义
钻机起升系统
Encyclopedia
工学
钻井装备
释
hoisting system
钻机起升系统
用以悬持、起升、下放钻柱、套管柱、油管柱或抽油杆柱及控制钻头送进的整套设备组合。
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user survey method
uses and gratifications approach
U set
U-set
Use the Language of the Motherland Correctly, Fight for the Purity and Health of the Language!(Editorial)
use value
use value of forest resource
use value of resources
U.S.FDA
USFDA
U.S. Federal Aviation Administration
U.S. Food and Drug Administration
U.S. Government Publishing Office
U.S.Government Publishing Office
U-shaped
U-shaped cells
U-shaped curve
U-shaped distribution
U-shaped valley
Ushihara Kyohiko
Ushin
Ush Rebellion
USIA
U.S. Information Service
using allusions
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