“chainwall”的概念、定义、翻译、参考文献-科学参考

单词	chainwall
释义	chainwall [`chān ´wȯl] ^{MINING ENGINEERING} A coal mining technique in which the mine roof is supported by coal pillars, between which the coal is mined away.
随便看	geochemical prospecting geochemical well logging geochemistry geochronology geochronometry Geocorisae geocorona geocosmogony geocronite geode Geodermatophilus geodesic geodesic circle geodesic completeness geodesic coordinates geodesic curvature geodesic distance geodesic dome geodesic ellipse geodesic hyperbola geodesic incompleteness geodesic line geodesic motion geodesic parallels geodesic parameters

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