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piston rings是什么意思，piston rings的翻译，piston rings音标、读音、用法和例句_歐米惠必应词典
歐米惠必应词典

piston rings

P 开头单词

同根派生

     

英汉例句

  • These bands are called piston rings.
    這些圈叫做活塞環。
  • 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自由狀態曲線進行了分析研究。