echo contact 中文意思是什麼

echo contact 解釋
回聲接觸
  • echo : n （pl echoes）1 回聲，反響；共鳴，反映。2 重復，摹仿；摹仿者；應聲蟲。3 【音韻學】與上句末音押韻...
  • contact : n 1 接觸；聯系；交涉。2 〈美國〉（有勢力的）熟人；門路。3 【數學】相切；【電學】接觸；觸頭；觸點...
  1. Measuring thickness by ultrasonic pulse - echo contact method

    接觸式超聲波脈沖回波法測厚
  2. Standard practice for ultrasonic pulse - echo straight - beam examination by the contact method

    用接觸法做超聲脈沖回波縱波檢驗
  3. Standard practice for measuring thickness by manual ultrasonic pulse - echo contact method

    用人工超聲脈沖回波接觸法測量厚度的標準實施規程
  4. Recommended practice for ultrasonic pulse - echo straight - beam tesing by the contact method

    接觸式超聲縱波直射探傷方法
  5. Standard test method for measurement of ultrasonic attenuation coefficients of advanced ceramics by pulse - echo contact technique

    用脈沖反射接觸技術測量高級陶瓷超聲衰減系數的標準試驗方法
  6. Standard guide for detection and evaluation of discontinuities by contact pulse - echo straight - beam ultrasonic methods

    用觸點脈沖回聲直束法探測和評價不連續性的標準指南
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