| 字词 | 背景 |
| 释义 | •¶ 历史背景 historical background; historical setting •¶ 时代背景 background characteristic of times •¶ 舞台背景 stage background •¶ 英语学习背景 cultural background for English study 背景场ambient field背景淡出background fade-out背景淡入background fade-in背景反射 〖计〗background reflectance背景反射信号background returns背景放映background projection背景放映机back projector; rear projector背景辐射background radiation背景基因型background genotype背景鉴别技术background discriminating technique背景亮度background luminance背景墨水 〖计〗background ink背景偏振polarization of background背景起伏background fluctuation背景染色法negative staining背景色background colour背景声background sound背景声扬声器background loudspeaker背景调整background control背景调制噪声background modulation noise背景温度background temperature背景污染background pollution背景吸收background absorption背景吸收校正background absorption correction背景信号background signal背景信号测定靶Hitab背景信息background information背景星background star背景星光stellar light背景音乐background music背景杂斑background clutter背景杂波[噪声]background noise背景杂波[噪声]电平background noise level背景噪声控制background-noise control背景噪声自动控制automatic background-noise control背景照明bias lighting背景照明装置bias lighting apparatus背景知识background knowledge; cultural background背景值background value |
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