英语词汇“permafrost drilling”的读音、翻译、释义、用法及例句-智慧网

词汇	permafrost drilling
释义	permafrost drillingpermafrost drilling1.■永冻土钻孔
随便看	stagefrequency curve stage fright stage gain stage gauging station stage grafting stage grinding stage grouting stagehand stage-hand stage hand stage-hardening stage head stage heat drop stage height of grouting stage hoist stage holding dolly stagehouse stage hydrograph stage I stage icing stage improvement stage indicator stage intercooling stage invariant stage jigging

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