单击此处编辑母版标题样式单击此处编辑母版文本样式第二级第三级第四级第五级Unit fifteen:pre-processingVocabulary and phraseimage restoration and rectification 图像恢复和校正Intend 想要打算[to-v][v-ing][(that)]Desirable 令人满意的calibrate校准 attenuate (