stepped

  • stepped bottom - 階式艇底{滑航艇}
  • stepped breadth - 階式底寬度
  • stepped bulkhead - 階式艙壁
  • stepped drum - 級輪；塔輪；塔筒
  • stepped hull - 階式艇殼{滑航艇}
  • stepped hydroplane ship - 階式滑航艇
  • stepped planing boat - 階底滑航艇
  • stepped point - 腮線

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