“swallow float”的概念、定义、翻译、参考文献-科学参考

单词	swallow float
释义	swallow float [`swä·lō ´flōt] ^ENGINEERING A tubular buoy used to measure current velocities; it can be adjusted to be neutrally buoyant and to drift at a selected density level while being tracked by shipboard listening devices. Also known as neutrally buoyant float; swallow buoy.
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