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声波探测仪
释义
声波探测仪
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。
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nine-j symbol
nine keep
nine kinds of preventions of archives
Nine Laments
Nine Lesser Chief Ministers
nine-link lantern
Nine Malawian Plays
Nine Military Towns of Ili
Nine Miss
Nine Monks
Nine Monks's Collected Poems
Nine Mountains School of Seon Buddhism
Nine Nights
nine old men in Huichang period
Nine Pacification Commissions
nine palace lattice composition
nine-point center
nine point circle
nine-point circle
nine-point conic
Nine Punishments
nine rank system
Nine Rivers
nine-six supplementation and draining method
Nine Songs
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