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mud scratcher
释义
mud scratcher
Encyclopedia
工学
套管程序
释
mud scratcher
泥饼刷
由钢丝和环状本体组成,安装在套管外壁,下套管时,用来刮削井壁泥饼,从而提高水泥环胶结质量的固井工具。
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language fossilization
language function planning
language generalization
language generation
language generation system
language globalization
language glossing
language harmony
language hegemony
language homomorphism
language hybridization
language identification
language impairment
Language in Culture and Society: A reader in Linguistic and Anthropology
language information communication
language is the dress of thought
language laboratory
language landscape
language league
Language Learning
language learning
language legislation
language life
language localization
language loyalty
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