相關(guān)單詞近義詞 ground noise 大地噪聲, 本底噪聲...臨近詞background ion, background, Background and Appreciation of poems, Background database of remote sensing, background initialization and renewal, Background field and Background value, Background Knowledge of Student's Book, background of disciplinary development, Background parity check in progress., background equivalent static wind load, background-limited infrared detector, background knowledge of English culture 返回 background noise