“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	personal communication personal communication system personal communication system, PCS personal company personal computer personal computer, PC personal construct theory personal credit evaluation personal difference personal digital assistant personal digital assistant for courier personal digital library personal direct payment for health services personal dose equivalent personal dose limit personal dose limit; individual dose limit personal dose monitoring instruments personal dosimeter personal equation personal error personal exposure personal file personal freedom personal genomics personal hygiene in sexual life

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。