词汇	ring drill excision
释义	ring drill excision 环钻切除
随便看	correction for deflection of the vertical correction for deflection of vertical correction for direction correction for drift correction for earth curvature correction for earth rotation correction for edge effect correction for emergence of stem correction for free air correction for grade correction for gravity correction for grouping correction for guessing correction for impulsiveness correction for inclination correction for index error correction for isostasy correction for lag correction for magnetic direction correction for mean correction for meridian curvature correction correction for mountain stream Correction Form Sender correction form signals Correction Form Test