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(jī)是利用內(nèi)轉(zhuǎn)子圓外旋輪線和外轉(zhuǎn)子圓內(nèi)旋輪線相結(jié)合的結(jié)構(gòu),不需曲軸、連桿和配氣機(jī)構(gòu)。
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