单词	人工砂
释义	人工砂artificial sand
随便看	multiple parasitism multiple part die multiple-part die multiple partial autocorrelations multipleparticle multiple particle reaction multipleparticle reaction multiple partitions allocation multiple partition support multiple-party multiple passette multiple pass interferometer multiple pass monochromator multiple-pass printing multiple-pass satellite multiple paternity multiple path multiple path catalytic reaction multiple path communication multiple path coupler multiple-path monorail system multiple path structure multiple pattern multiple pen plotter multiple perforation