helical groove structure

常見(jiàn)例句

雙語(yǔ)例句

• A theory for the analysis of the arbitrarily-shaped helical groove structure is obtained by means of an approximate field-theory.
  採(cǎi)用近似場(chǎng)論的方法，獲得了一種分析任意槽形螺鏇槽結(jié)搆的普遍理論。
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