阶梯楔块校准底片: step-wadge calibration filmstep-wadgecalibrationfilmstwadge calibration film
检: Ⅰ动词1.(查) check up; inspect; examine 短语和例子检定 examine and determine2.(约束; 检点) restrain oneself; be careful in one's conduct 短语和例子行为不检 depart from correct conductⅡ名词(姓氏) a surname 短语和例子检其明 ji
