hypotrochoid

常見例句

• This engine utilizes the rotor round of epitrochoid and the outer rotor round of hypotrochoid the structure of combination, which does not need crankshaft, linkage and gas distribution agencies.
  這種發(fā)動機是利用內轉子圓外旋輪線和外轉子圓內旋輪線相結合的結構,不需曲軸、連桿和配氣機構。
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