ball

  • ball and socket coupling - 球窩聯結器
  • ball and socket joint - 球窩接頭
  • ball bearing - 球軸承；滾珠軸承
  • ball check - 球形[截止]閥
  • ball float valve - 浮球閥
  • ball joint - 球接頭
  • ball launching - 鋼球滑道下水
  • ball mill - 球磨粉機
  • ball milling - 球磨
  • ball plug - 艇底自動洩水塞
  • ball retainer - 滾珠扣件
  • ball shape - 球形號標
  • ball thrust bearing - 滾珠止推軸承；滾珠推力軸承
  • ball valve - 球閥
  • ball-and-lever valve - 球桿[操縱]閥
  • ball-and-spring valve - 彈簧球閥

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