undulation的知识精选

“undulation”可以造什么句,undulation造句
sinusoidalundulationfrequencycompensationofundulationShemovedwithashorterundulationbesideherfather'swife.abroadanddeepundulationoftheocean.ThebigvoltageundulationfromRS-232leadtoanoisetolerablelimita...
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