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反井钻机法
释义
反井钻机法
Encyclopedia
工学
天井掘进
释
raise-boring method
反井钻机法
采用反井钻机先打导向孔,再从下而上用钻井刷扩至要求断面的完全机械破岩的天井掘进的施工方法。
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γ-ray emission of BL Lac objects
γ-ray identification
γ ray interaction with matter
γ-ray laser
γ-ray line
γ-ray line astronomy
γ-ray line emission
γ-ray luminosity
γ-ray map
γ-ray observation
γ-ray observatory
γ-ray optics and detection techniques
γ-ray protection
γ-ray pulsar
γ-ray radiation sampling apparatus
γ-ray radioassay instrument and equipment
γ-ray radiometer
γ-ray satellite
γ-ray scattering
γ ray sky
γ-ray sky
γ-ray source
γ-ray source catalog
γ-ray spectral line
γ-ray spectrometer
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