fathometer
名词 n.
英文释义
名词 n.
-
A depth finder that uses sound waves to determine the depth of water.
— A Fathometer is just a vertical echo-ranger; its pings would sound the same and could drive a submarine out of position just as effectively as horizontal echo-ranging and might even make a contact.
词形变化
词源
Etymology tree
English fathom
Proto-Indo-European *meh₁-
Proto-Indo-European *-trom
Proto-Hellenic *-tron
Ancient Greek -τρον (-tron)
Ancient Greek μέτρον (métron)der.
English -meter
English fathometer
From fathom (“nautical length measurement used for depth”) + -meter.
English fathom
Proto-Indo-European *meh₁-
Proto-Indo-European *-trom
Proto-Hellenic *-tron
Ancient Greek -τρον (-tron)
Ancient Greek μέτρον (métron)der.
English -meter
English fathometer
From fathom (“nautical length measurement used for depth”) + -meter.
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数据来源: Wiktionary