Cinematography. Common to more than one film gauge. Sound-Specification for positions and width dimensions of recording and reproducing head gaps for three-, four- or six-track magnetic sound records on 35 mm and single-track on 17.5 mm motion-picture film containing no picture
电影摄影 多个胶片测量仪共用 声音35mm电影胶片上三声道、四声道或六声道磁性录音和17.5mm电影胶片上不含图片的单声道磁性录音和重放磁头间隙的位置和宽度尺寸规范