凹形 [āo xíng]

• spill
• 短语:
  • 凹形槽 Baltimore groove;
  • 凹形垫 thumb pad;
  • 凹形辊身 concave barrel;
  • 凹形规划法 concave programming;
  • 凹形剪 concave shear;
  • 凹形角焊缝 concave fullet [filled] weld;
  • 凹形接电器 concave collector;
  • 凹形轮辋 concave rim;
  • 凹形皮革件 leather hollows;
  • 凹形器皿 hollow ware;
  • 凹形竖曲线 vertical sag curve;
  • 凹形弹簧片 dented spring leaf;
  • 凹形铁 channel;
  • 凹形凸轮 concave cam;
  • 凹形挖掘铲 undercutter;
  • 凹形铣刀 concave (milling) cutter;
  • 凹形线脚 {建} congé;
  • 凹形阴极 reentrant cathode;
  • 凹形凿 concave bit;
  • 凹形砖（砌拱用砖） concave brick;
  • 凹形钻头 concave bit