piston rings

同根派生

• piston rings相關(guān)詞

英漢例句

• These bands are called piston rings.
  這些圈叫做活塞環(huán)。
• The unrestrained piston ring curve has been analyzed by the finite element method.
  摘要引入有限元法對活塞環(huán)自由狀態(tài)曲線進行了分析研究。

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