building cartoon construction mixer equipment addon cement Cement Mixer clip art 水泥 混音器 水泥搅拌机 水泥搅拌机剪贴画
These are images from my 2010 travels I've converted with this command: for i in *.jpg; do convert "$i" "`basename "$i" .jpg`.png" && autotrace -despeckle-level 15 -color-count 6 -input-format PNG -output-file "`basename "$i" .jpg`".svg -output-format svg "`basename "$i" .jpg`.png"; done 照片 区域 捐赠 在草场地水泥起重机