词汇	basic banks
释义	basic banks 基层行
随便看	negative contact agent negative contour modulation negative contrast negative contrast areas Negative contrast cardiac roentgenography negative contrast echocardiography negative contrast electron microscopy negative-contrast electron microscopy negative contrast of reinforcement Negative Contrast Radiographies Negative Contrast Radiography negative contrast staining negative contrast technique negative contribution margin negative control negative-control negative controlling negative control region negative control thyratron negative-control thyratron negative convergence negative converter Negative Convexity negative cooperation negative cooperativity