阶梯楔块校准底片: step-wadge calibration filmstep-wadgecalibrationfilmstwadge calibration film
翻: 动词1.(变换位置; 歪倒; 反转) turn over; turn around; reverse 短语和例子碰翻 knock over; 推翻 overturn; overthrow; 在床上翻来翻去 toss in bed; 车翻了。 the truck turned over. 把饼翻个儿再烙一会儿。 turn the cake over and bake it s
