“sonic detector”的概念、定义、翻译、参考文献-科学参考

单词	sonic detector
释义	sonic detector Encyclopedia 理学工程物探仪器释 sonic detector声波探测仪通过向岩体、岩石、混凝土等发射声脉冲，接收声场经介质传播的声波信号，并分析介质的时间、能量、频率等声波变化的观测仪器。
随便看	VALS Classification System VALS分类系统 Valter brani Sarajevo valuable portion photography of crime scene valuable security valuated valuation valuation group valuation ideal valuation model for preferred stock valuation model of non-fixed growth stock valuation of ecosystem service valuation of rank 1 valuation of rank r valuation progress combination valuation ring valuation technology of non-value factor valuation theory valuation topology valuation vector valuative criterion value value accounting of resources value added value-added assessment

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。