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derrick floor
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derrick floor
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derrick floor
钻台
用来安装转盘、摆放钻杆、钻铤、井口工具等,并提供井口装置的安装空间和钻井作业的操作平台。
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abstract family of languages
abstract family of languages, AFL
abstract field
abstract film
abstract finite group
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abstract harmonic analysis
abstract homotopy theory
abstract ideal theory
abstract index notation
abstract integral
abstract integral equation
abstract integration theory
abstract interpolation
abstract interval function
abstraction
abstraction by identification
abstraction class
abstraction interpretation
abstraction mapping
abstraction of actual infinity
abstraction of potential realizability
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