单词	倒划--反划
释义	倒划；反划back water
随便看	optical ranging optical ranging system optical ray optical reader optical reader input device optical reading direct input system optical reading direct input system--ordis optical reading direct input system，ordis optical reading equipment optical reading theodolite optical read-only memory optical readout unit optical read/write head optical receiver optical recognition optical recognition device optical recombiner optical recorder optical recording optical recording media optical recording/reading heads optical rectification optical refinement optical reflection optical reflectometer