半空

• Degree countersunk head semi - tubular rivets
  沉头半空心铆钉
• Semi - tubular countersunk head rivets ; nominal diameters 1 , 6 to 10 mm
  半空心圆沉头铆钉.公称直径1 , 6至10mm
• Flat and even - headed half hollow rivet
  扁圆头半空心铆钉
• Elastic half - space foundation model
  弹性半空间地基模型
• I don ' t know ! we ' re floating
  我不知道!我们漂在半空
• Countersunk head semi - tubular rivets
  沉头半空心铆钉
• Countersunk head semi - tublar rivets
  沉头半空心铆钉
• There are lives on the line
  成千上万的人命悬半空
• Truss head semi - tubular rivets
  大扁圆头半空心铆钉
• Oblate - headed half - hollow rivet
  扁平头半空心铆钉