“ultrasonic logging”的概念、定义、翻译、参考文献-科学参考

单词	ultrasonic logging
释义	ultrasonic logging Encyclopedia 理学声波测井释 ultrasonic logging超声波测井采用超声波频段（＞20千赫）的脉冲弹性波在井下进行的超声脉冲回波测量技术。
随便看	Total Amount Control of Pollutants total amount control of water pollution total amount discharge standard total amount of resources total amplitude total angular defect total angular momentum total angular momentum quantum number total-annular eclipse total area total area of urban parks total bacterial count total binding energy total-block total boundary operator total boundedness total brightness total character total characteristic total Chern character total Chern class total chromatic number total chromatic number conjecture total claim amount total class

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