“超声波式水位计”的概念、定义、翻译、参考文献-科学参考

单词	超声波式水位计
释义	超声波式水位计 Encyclopedia 工学超声波式水位计释 ultrasonic stage recorder超声波式水位计将换能器安装在水下或水上某一已知高程位置，通过记录换能器发射的声脉冲在换能器与水面之间的往返传播时间和声波传播速度来计算测量水位的仪器。
随便看	group-valued measure group-valued set function group variable selection group variety group velocity group velocity control method, GVC method group velocity dispersion group velocity mismatch Group VIII B element Group VIII element group von Neumann algebra groupware group with a (B,N)-pair group with a decreasing filtration group with a domain of operators group with a finiteness condition group with an increasing filtration group with a pairing group with a ring of operators group with a semigroup of operators group with center group with multiple operators group with operators group without center group without radical

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