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水声 | |
gen. | hydroacoustics |
基准 | |
gen. | norm |
el. meas.inst. | primary standard |
IMF. | performance benchmark |
oil | bench mark |
UN account. | benchmark |
UN cartogr. | datum |
实验室 | |
environ. | laboratory |
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hydroacoustics; underwater sound; water-borne sound | |||
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hydroacoustics |
水声 : 411 phrases in 35 subjects |