基本解釋[能源科學技術(shù)]背景反差比英漢例句雙語例句The targets SNR(Signal Noise Ratio)and contrast are very low when the target is in the sea background in which there are sea waves and the reflexing light from the stretch welter.海面背景下海面及連綿起伏的波浪反光使圖像的信噪比和對比度都較低，而且艦船目標像素較少。The invention relates to a target source with adjustable contrast ratio. The target of the target source is arranged between target integrating sphere and background integrating sphere;本發(fā)明涉及一種可調(diào)對比度目標源，該目標源的目標在目標積分球與背景積分球之間；ip.combackground contrast ratio更多例句詞組短語短語background d contrast ratio 背景反差比background contrast ratio更多詞組專業(yè)釋義能源科學技術(shù)背景反差比