[电影] 循环放映机 loop projector: 循环片放映机; 循环式幻灯片条放映机continuous projector: 连续放映机; 连续式放映机; 匀速拉片放映机cassette loop projector: 循环式幻灯片条放映机continuous loop: 连续环路; 连续蛇形管; 连续循环continuous film projector: 连续式电影放映机下载手机词典可随时随地查词查翻译