颈缩

• necking (down)
• constriction

参考释义

颈缩 [jǐng suō]

• -
• 短语
  颈缩（型）不稳定性 sausage(-type) instability
  颈缩隔片 necked-down core
  颈缩现象 necking phenomenon
  颈缩芯片 necked-down core