单词	小平洞
释义	同小横坑--小平洞
随便看	cross-sectional analysis cross-sectional approach cross sectional area cross-sectional area cross-sectional data cross-sectional design cross-sectionally cross-sectional mean velocity cross-sectional regression cross-sectional research cross-sectional sampling cross-sectional shape cross-sectional study cross-sectional study approach cross-sectional survey cross sectional surveying cross-sectional testing cross-sectional unit cross sectional view cross-sectional view cross-sectional x-ray cross section analysis cross-section analysis cross section area cross-section, atenuation