sound velocimeter
... sound velocimeter 声速测量仪 ; 声速计 around velocimeter 环鸣声速仪 vector velocimeter 向量速度计 ...
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文中以作者主持的海洋863项目“声光悬浮沙粒径谱测量仪”为例，列举了声速、声衰减、悬浮泥沙粒径谱的测量结果。
Taking 863 818 project, "Acoustics optic suspended sand size measurement System", as an example, the measurement results about speed, attenuation, suspended sand size distribution are listed.
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