“background returns”的概念、定义、翻译、参考文献-科学参考

单词	background returns
释义	background returns [`bak´grau̇nd ri`tǝrnz] ^ENGINEERING 1. Signals on a radar screen from objects which are of no interest. 2. See <<clutter>>
随便看	propeller windmill propenyl guaethol properdin proper fraction proper function proper Lorentz transformation properly divergent series proper motion proper orthogonal transformation proper rational function proper subset proper time property detector property list proper value propfan prop-free prop-free front prophage propham prophase prophylaxis propiodal propionaldehyde propionate

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