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

单词	ultrasonic hardness tester
释义	ultrasonic hardness tester Encyclopedia 工学硬度计释 ultrasonic hardness tester超声硬度计利用超声接触阻抗法（UCI）进行硬度检测的携带式仪器。
随便看	monotonicity of a function monotonicity of a norm monotonicity-preserving difference monotonicity preserving difference scheme monotonicity-preserving difference scheme monotonicity theorem monotonic law monotonic mapping monotonic matrix monotonic model monotonic model of the first kind monotonic model of the second kind monotonic reasoning monotonic sequence monotonic system of sets monotonic transformation monotonic variable monotonic voting monotonous monotonousness monotonous property monotony monotony interval monotony law monotopological category

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。